Korby came in and blew me away xD
Hohoho...
Anyway, the game is REALLY fun, more fun with other people in fact.
I HAVE noticed a "slight" camping issue at the teleporter in the demo wily level.
I'm gonna post what I think of the weapons now.
Rolling Cutter: Absolutely devastating if you can use it right(like me

)
Atomic Fire: Really good, can easily kill people in one hit. Shoot down long corridors. Charge time is a bit long.
Hard Knuckle: Can kill in two hits. Shoot down long and narrow corridors, or up close
Search Snake: Amazing if you're on a cliff and can strafe(for example, the demo wily level)
Napalm Bomb: See above. Also, good in close quarters combat, or when running away
Ice Slasher: I just found this as a faster and more powerful buster. Good to use, I guess.
Needle Cannon: A much better alternative to Ice Slasher. It slows down opponents AND is highly rapid fire.
Metal Blade: Strong, fast, good fire rate. Just like in MM2
Rain Flush: Covers a huge area with its attack, which makes it useful for picking off people with low health.
Gemini Laser: Pretty good damage and it bounces off walls. Use in narrow corridors for an impassable wall of lasers!
Magnet Missile: A strong and homing weapon that chews up a lot of ammo. Fire rate isn't too good.
Quick Boomerang: Get up close and you can kill anyone. ANYONE. This rapid fire beast will completely decimate anything that comes in your path.
Dust Crush(er?): Haven't use this much, but it's pretty good. When it hits something, it splits into more pieces.
Air Shooter: An insanely good shotgun. Get up close!
Thunder Beam: Shoots beams to your left, right, and forwards. Very useful for picking off groups of enemies.
Ring Boomerang: I haven't used this at all. No idea what it does, but it seems to be an inferior cousin to Rolling Cutter.
My FAVORITE weapons would have to be Napalm's, Snake's, and Quick's.