This is something I've been working on for quite some time. Essentially, this is a compilation of lots of different jumps that are possible in the vanilla MM8BDM game. The jumps I've listed here fall under the following criteria (which are broken a lot because I just got carried away):
1) I set out only to find jumps that could be executed without aid. That means, I am only listing jumps made without the help of items or weapons, just movement and the jump button. (Assistance from the stage is okay though, as you'll see in a few jumps.)
2) These jumps are jumps that seemed to me to be unintentional (that is to say, not obvious and not well known.)
3) With the exception of a few, all of these jumps require SR40 or SR50 to complete. I specified when SR50 is strictly required when I could remember, but I might have (read: probably) missed some.
4) With the exception of a few, I only wanted to list jumps that, if they could be performed effortlessly, would be useful during a game. Of course, most of these jumps cannot be performed effortlessly.
So really this is just a bit of fun I had that I wanted to share. Many of these are impractical to use during gameplay. I add some notes to certain jumps when they are called for (such as to indicate the most difficult jumps [in my experience], etc.)
Also, with the exception of two, I have completed all of these jumps. If you're having a lot of trouble, keep these things in mind:
-Some/many of the jumps I didn't specify SR50 for may require it anyway.
-Very small elevation changes (the kinds you can walk up/down without jumping) will interrupt your jump, so maneuver around these.
-Turn 38.7 degrees from your movement direction to maximize distance with SR40. Turn 45 degrees to maximize distance with SR50.
-Most of the time you will need a short running start. Some jumps will require some tricky maneuvering, with that in mind.
Refer to this guide (http://www.cutstuff.net/forum/viewtopic.php?f=44&t=5869), in section VII-B, for information on binding and using SR50.
Wherever the crosshair/buster pellets are pointing towards is the destination area of the jump; wherever I'm standing is the starting area. Obviously most jumps will be made from the edge of whatever platform I'm on.
Of course, I excluded all maps in which I didn't find any such jumps.
Anyway, without further ado, here's what I've found! I apologize in advance for format breakage.
MM1
MM1BOM
(http://i.imgur.com/w6cbi4f.png)
(http://i.imgur.com/K2fLMNC.png)
MM1ELE
Jumping on the gyro fan, hold jump.
(http://i.imgur.com/IYoNrky.png)
Jumping on the gyro fan, hold jump.
(http://i.imgur.com/A7OFvCe.png)
(http://i.imgur.com/AYPqoMo.png)
(http://i.imgur.com/InyUhvU.png)
Jumping on the gyro fan, hold jump.
(http://i.imgur.com/5sIFLrI.png)
(http://i.imgur.com/nXcrlBo.png)
(http://i.imgur.com/otJ0s08.png)
MM1ICE
Jump from the water, break the surface just as you come in contact with the wall, and you'll shoot up.
(http://i.imgur.com/6qdh5F7.png)
(http://i.imgur.com/xQPlGr5.png)
Pretty sure this is SR50 only.
(http://i.imgur.com/aZl0zbX.png)
...But you can just jump to the tree first instead without SR50!
(http://i.imgur.com/PUFYzhp.png)
Hard but useless, since I don't think you can make it from the tree to the E-Tank.
(http://i.imgur.com/Y9wL9bM.png)
(http://i.imgur.com/3ULSyfU.png)
MM1FIR
(http://i.imgur.com/jiFXFU5.png)
(http://i.imgur.com/KJ60jVg.png)
This is from the platform higher up.
(http://i.imgur.com/OI9Y4pd.png)
(http://i.imgur.com/kPubQ08.png)
You can get from here to the outside ledge of the grate by Rolling Cutter. You can't get back though, of course.(http://i.imgur.com/xdAsAVI.png)
(http://i.imgur.com/oOqVbrB.png)
(http://i.imgur.com/twlJsMH.png)
I think I stop repeating symmetric jumps after this...
(http://i.imgur.com/RRJHwnw.png)
MM1TIM
(http://i.imgur.com/uju2Hmd.png)
(http://i.imgur.com/s1dRPzC.png)
(http://i.imgur.com/4Sr0KQF.png)
MM1OIL
From the oil canister...
(http://i.imgur.com/LtnZMW7.png)
Just seemed a lot of people haven't noticed this.
(http://i.imgur.com/r2NG5al.png)
MM1GUT
Be careful here, the short steps can mess up your jump.
(http://i.imgur.com/T8SZk5w.png)
Right above Tornado Hold.
(http://i.imgur.com/HXYozA1.png)
Now at Tornado Hold...
(http://i.imgur.com/yPpnRss.png)
You can make it without touching the lift, though it's somewhat hard to avoid that...
(http://i.imgur.com/LEEUPJF.png)
MM2
MM2BUB
(http://i.imgur.com/cozJjZI.png)
(http://i.imgur.com/iVa8rUP.png)
(http://i.imgur.com/VmrKmGy.png)
(http://i.imgur.com/JSfCcip.png)
(http://i.imgur.com/836TqIS.png)
(http://i.imgur.com/IMdexWW.png)
(http://i.imgur.com/2SRFicN.png)
(http://i.imgur.com/Zj3jYQy.png)
(http://i.imgur.com/07mYPp2.png)
(http://i.imgur.com/mmFNnkT.png)
MM2HEA
To the closest Yoku Block on the 'wrong' side.
(http://i.imgur.com/FCqg5Ec.png)
I forgot to take a screenie and am extremely lazy, but you can also jump from the same platform to the second Yoku Block on the 'correct' side.
MM2FLA
(http://i.imgur.com/TRURDeO.png)
(http://i.imgur.com/oTymDbI.png)
(http://i.imgur.com/DisWkeL.png)
This is, in my experience, the most difficult jump in the game. You have to start at the bottom of the stairs leading to Search Snake/Shadow Blade. SR40 and jump up those stairs, continue SR40ing as you turn smoothly toward Shadow Blade. Don't hit any walls. As you angle towards and move towards the ledge by Shadow Blade, angle yourself so you will clear that pillar on the right, as well as the corner of the wall on the left. Short hop up onto the ledge while giving yourself space to continue running. Once you are on the ledge, switch to SR50 (hopefully your angle is correct.) After all of that, once you are SR50ing on the ledge, you must jump at the last possible moment in order to clear the low wall above your head and make the distance. I have only made this once.
(http://i.imgur.com/uM2fVsA.png)
MM2QUI
Yoooooooo... Doesn't even need SR50...
(http://i.imgur.com/KEwqR7t.png)
(http://i.imgur.com/2C3WMqT.png)
MM2WOO
Pretty sure this requires SR50.
(http://i.imgur.com/C1bTIsQ.png)
MM2MET
Ride that conveyor a bit then juuuuuump.
(http://i.imgur.com/RqPr5GP.png)
(http://i.imgur.com/V6uVdM7.png)
(http://i.imgur.com/hEGmnQB.png)
(http://i.imgur.com/hlpWQoM.png)
MM2DW1
One of the hardest jumps in the game. It's just normal execution, with SR50, it's just at the verrrrry edge of your jump range.(http://i.imgur.com/NKZYSRY.png)
Same thing as the previous one.
(http://i.imgur.com/god7FFV.png)
On top of the barrels. This is easier than the one before.
(http://i.imgur.com/gQJHvWw.png)
Also easier than the first one.
(http://i.imgur.com/W15WYtZ.png)
MM3
MM3TOP
Hard and literally useless.
(http://i.imgur.com/XoOFEfr.png)
This is from Hard Knuckle, skipping the spinning top.
(http://i.imgur.com/bxiznQi.png)
Again, almost entirely useless.
(http://i.imgur.com/zVTJ5pf.png)
(http://i.imgur.com/UpHgtrn.png)
MM3HAR
(http://i.imgur.com/ASdDKUO.png)
Jumping to Super Arm...
(http://i.imgur.com/m1M3vy0.png)
...and jumping back.
(http://i.imgur.com/n9TVrf7.png)
MM3MAG
Psssh, magflies pls.
(http://i.imgur.com/fDK20pi.png)
MM3SPA
Same thing from Drill Bomb.
(http://i.imgur.com/s69p2v8.png)
Same thing to Napalm Bomb.
(http://i.imgur.com/s1oEsDp.png)
MM3DW1
Stay on the very edge of the teleporter and you won't teleport.
(http://i.imgur.com/rTgxkhO.png)
MM4
MM4PHA
A little tricky, watch out for the ceiling.
(http://i.imgur.com/Hc7WBNk.png)
Saves a second or a half.
(http://i.imgur.com/Uih9Xd8.png)
Okay this is under Flash Stopper. Climb up that ladder while holding jump, and you will get a boost at the top of the ladder. This is just enough to clip you onto the higher platform, where the Big Ammo is.
(http://i.imgur.com/grBH0T4.png)
Of course, works for any corner.
(http://i.imgur.com/8utocED.png)
MM4BRI
(http://i.imgur.com/hZlFYNh.png)
(http://i.imgur.com/SQwFE53.png)
MM4SKU
(http://i.imgur.com/Pgmdb0L.png)
Again, ceilings are evil.
(http://i.imgur.com/Hsus59i.png)
MM4RIN
Works on all four...
(http://i.imgur.com/lROhYl5.png)
Pretty darn difficult (requires SR50 of course.)
(http://i.imgur.com/aUZJIol.png)
MM4DIV
Start from behind the highest pillar, along the edge of the map, the one closest to Charge Kick. Angle properly, jump up, and hold jump. Once you clear the pillar you should get a boost up, and then you can just barely make it to Astro Crush over there.
(http://i.imgur.com/nsgYLDF.png)
MM4TOA
This jump is possible anywhere from one edge of the sewer water flow areas to the other. The jump is more difficult on the lower level due to the low ceiling, but still possible.
(http://i.imgur.com/Kr9MqLB.png)
MM4DC1
I like this one a lot. Only SR40 is necessary.
(http://i.imgur.com/mtoYGsq.png)
Okay so, I don't actually think this one is possible. If it is, it requires perfect angle so you minimize the distance traveled. The problem is maintaining the correct height; if this is possible, you have about 1 or 2 map units to spare. I'm putting this here so people can try it and get back to me.(http://i.imgur.com/YpWenIG.png)
Beyond useless, but entertaining and pretty difficult.
(http://i.imgur.com/lgl6MJS.png)
MM5
MM5CHA
From Sakugarne, in case you can't tell.
(http://i.imgur.com/kneTdzo.png)
Skipping one stack of boxes, yaaaay.
(http://i.imgur.com/g0WnCT0.png)
MM5STO
Actually, most people probably know this one.
(http://i.imgur.com/afUkfxn.png)
This direction gets neglected because of Rain Flush...
(http://i.imgur.com/hGEgzwv.png)
Pretty sure this is SR50 only.
(http://i.imgur.com/lF9iFV4.png)
A whole lot harder than it looks.
(http://i.imgur.com/Qh6T1dj.png)
MM5GYR
Easy jump, but leads to...
(http://i.imgur.com/330OJnx.png)
...a more useful one!
(http://i.imgur.com/aDWWNfL.png)
MM5GRA
Low gravity only, of course.
(http://i.imgur.com/Ry8xsT7.png)
Low gravity only...
(http://i.imgur.com/trQhvhO.png)
If you think these work in high gravity you need help.
(http://i.imgur.com/cBMRXik.png)
This is actually a very useful, if somewhat difficult, jump. This is possible in high gravity. So far I've only made it with SR50.
(http://i.imgur.com/0hRKhEh.png)
MM5STA
Standing on the fence/railing thing.
(http://i.imgur.com/PMbX4pl.png)
MM5CRY
If you ever need to use this jump I applaud you.
(http://i.imgur.com/i27ui2X.png)
MM5DAR
Fan jump, hold jump and influence your direction. You can make it into the top area where Ice Wave is.
(http://i.imgur.com/yJQbrsK.png)
Harder than it looks, no good ways to get speed up...
(http://i.imgur.com/cjpYlGd.png)
(http://i.imgur.com/7ATekXZ.png)
MM6
MM6CEN
Not that you'd want to skip the W-Tanks, but...
(http://i.imgur.com/nwvbw2O.png)
MM6KNI
Because who needs ladders.
(http://i.imgur.com/jTyMDxc.png)
Literally probably takes more time than dropping one level then jumping.
(http://i.imgur.com/1Axw65Z.png)
In case you ever need to be telefragged as quickly as possible.
(http://i.imgur.com/pD6QPNm.png)
I'm sorry all of your intended uses are gone in Duel, Rush...
(http://i.imgur.com/1SkNDyu.png)
(http://i.imgur.com/QsvBi7W.png)
Itty bitty actor platform.
(http://i.imgur.com/5Bx69zp.png)
To surprise hopeful telefraggers.
(http://i.imgur.com/i0qEutV.png)
Definitely SR50 only.
(http://i.imgur.com/NajZsaw.png)
MM6PLA
(http://i.imgur.com/Zq4Tek9.png)
(http://i.imgur.com/ogVLdP6.png)
(http://i.imgur.com/jhdfZyp.png)
(http://i.imgur.com/3fdZstM.png)
(http://i.imgur.com/hg32521.png)
Found this in my quest to avoid the muddy water at all costs.
(http://i.imgur.com/vpSdH2Y.png)
MM6FLA
SR50 only.
(http://i.imgur.com/mZSytGI.png)
(http://i.imgur.com/SRVeSmc.png)
You can juuuust scrape by the corner.
(http://i.imgur.com/Ms6JX6b.png)
Probably was intended. Oh well.
(http://i.imgur.com/Z267Om9.png)
MM6YAM
Was difficult to get this screenshot before I fell off...
(http://i.imgur.com/dDyN7GX.png)
Likewise here.
(http://i.imgur.com/3ptxbdm.png)
MM6MRX
Another of my personal favorites.
(http://i.imgur.com/O0YiEwa.png)
This one is obvious but just covering my bases.
(http://i.imgur.com/6wlGx30.png)
Very precise timing needed. Reverse is easier.
(http://i.imgur.com/RnLIOmX.png)
Forget what I said earlier, this is possible. Face pretty much straight toward where the fan is supposed to take you, hold jump (or don't, it's possible either way), and SR50 to the right in the air.
(http://i.imgur.com/PoKDaw2.png)
Finally got around to practicing this jump and it is very possible. I've only succeeded with SR50, and I'm fairly certain it's SR50-only.
(http://i.imgur.com/QfdwspM.png)
This isn't technically a jump, but it's in a similar vein and actually can be useful. If you SR50 with the correct angle (close to what is shown here) after stepping on the gyro pad, you can actually land back on this platform.
(http://i.imgur.com/NGfXfJh.png)
MM7
MM7FRE
Spoilers: The ice is death.
(http://i.imgur.com/dz42uRx.png)
(http://i.imgur.com/ZgF0NS9.png)
MM7JUN
You can land there from by Scorch Wheel, too.
(http://i.imgur.com/hpLOwwE.png)
Gotta start at the very edge of the opposite edge and SR50.
(http://i.imgur.com/inVDota.png)
Not reversible because you don't have enough room, I believe. Also, SR50 only.
(http://i.imgur.com/cVzGYSW.png)
(http://i.imgur.com/DHRk2qx.png)
MM7BUR
Jump from window to window to get to the M-Tank.
(http://i.imgur.com/ltzRbV1.png)
MM7SPR
One of the hardest jumps. SR50, stay close to but do not make contact with the wall.
(http://i.imgur.com/qsy8Urc.png)
Surprise enemies? I dunno.
(http://i.imgur.com/q5snxbE.png)
MM7SLA
Useless/10.
(http://i.imgur.com/fk9rfUl.png)
Easier than it looks and very useful.
(http://i.imgur.com/ZKUn3jS.png)
campcampcampcampcamp
(http://i.imgur.com/SsExlR7.png)
This is by Water Wave. This is probably the second hardest jump in the game, after the one on MM2FLA. Like the jump on MM2DW1, it's straightforward, mostly. It's hard to build up your speed without hitting a corner, and the range is like maxed out.(http://i.imgur.com/8JXyFkg.png)
MM7SHA
(http://i.imgur.com/p3mhnzI.png)
From a different platform, higher up.
(http://i.imgur.com/68lXbTV.png)
From the pillar near, Flame Sword, jump from the elevated base to the middle window. From there, jump to the farther window. Then, jump to the same window seen in the first two screenshots for this map.
(http://i.imgur.com/foSFFNU.png)
MM7TUR
Never was sure if this was intended or not.
(http://i.imgur.com/Uu6mgoK.png)
MM7DW4
(http://i.imgur.com/l8oP1Lj.png)
(http://i.imgur.com/i7dr6jz.png)
This isn't technically an unassisted jump, but I though it was cool. if you jump down to the bottom through the center and Guts Man G hits you before you hit the ground, you can snag this M-Tank without Super Adapter.
(http://i.imgur.com/q2c4U09.png)
MM8
MM8TEN
From the Big Ammo or the window next to it.
(http://i.imgur.com/ORTy8uS.png)
SR50 required, I believe.
(http://i.imgur.com/zoFMmb3.png)
MM8AST
Yes, I do mean jumping across the widest part. This is one of the hardest in the game. Line yourself up back behind Water Balloon, using the stage lines then turning exactly 45 degrees. Then just SR50 and jump as late as you can. If you set it up correctly it's actually not too hard.(http://i.imgur.com/MXkzWzo.png)
To the second platform, as shown.
(http://i.imgur.com/EAWpzmA.png)
Same deal. You have to be quick once you land if you're going to make it to Astro Crush, since you'll have to turn around (unless you jump backwards.)
(http://i.imgur.com/5i8AjCu.png)
SR50 only. Kinda cool, saves moving around the hole.
(http://i.imgur.com/G8a7ymk.png)
MM8SWO
Those lava falls are not solid. You can make it to Yamato Spear.
(http://i.imgur.com/cMfEh0c.png)
You can just barely fit under the bridge. Good for quick escapes. Easier than it looks.
(http://i.imgur.com/qr2YtLy.png)
MM8SEA
I wonder which one Zhade prefers: precise jumps or Thunder Claw pegs... But yeah, skip the peg here.
(http://i.imgur.com/pJeh5RT.png)
And here. Probably SR50 only.
(http://i.imgur.com/xSo0xhS.png)
Credit to Shade Guy for this one. I had never noticed this before. You jump into this little alcove, then a well-timed jump to avoid the ceiling lands you on that bridge.
(http://i.imgur.com/xxcllD3.png)
MM8FRO
Slightly difficult.
(http://i.imgur.com/rP0O6V5.png)
This is the Ballade Cracker area. This jump is made on a snowboard.
(http://i.imgur.com/kmAiEgs.png)
Same deal here.
(http://i.imgur.com/BNQRPmo.png)
And here (well, this is the other snowboard segment.)
(http://i.imgur.com/9W8Snid.png)
MM8AQU
(http://i.imgur.com/huLeuS5.png)
From Water Balloon platform. Probably saves a second or two.
(http://i.imgur.com/8slNS4F.png)
Saves some air time over walking.
(http://i.imgur.com/6jimms6.png)
MM8DUO
Tougher than it looks. Might be SR50 only.
(http://i.imgur.com/sD0vaPf.png)
(http://i.imgur.com/2SMcR3M.png)
MM8DW2
Likely SR50 only. Only works from the highest pink step.
(http://i.imgur.com/Cdlu9RG.png)
(http://i.imgur.com/4Ykim7I.png)
MMCTF
MMCTF02
(http://i.imgur.com/4q6cOiw.png)
MMCTF03
Harder than it looks.
(http://i.imgur.com/oUD470H.png)
(http://i.imgur.com/XGUNV7N.png)
(http://i.imgur.com/7TRJA2F.png)
(http://i.imgur.com/deqHrbe.png)
MMCTF05
SR50 only. Pretty difficult.
(http://i.imgur.com/KhuZvkX.png)
MMCTF07
A personal favorite. SR50 only, I'm pretty sure.
(http://i.imgur.com/ywm4geW.png)
MMCTF08
(http://i.imgur.com/fFQEMaS.png)
Who needs Wire Adapter?
(http://i.imgur.com/SR8KJWd.png)
(http://i.imgur.com/kxUkwJF.png)
MMCTF10
Interesting one, this is aaaaalmost at the edge of SR40 ranged. Easier with SR50, of course, but can be done without.(http://i.imgur.com/Fwv6und.png)
MMCTF11
(http://i.imgur.com/xe6Yq07.png)
--------------------------------------------
So, uh, yeah. I guess you can discuss general MM8BDM platforming/jumps here. Also, if you find any more jumps in the vanilla game, or need some help, post here!