"Here are a few combos to try when your adrenaline reaches 100:

Speed boost:  [w][w][w][w]

Heal: [s][s][s][s]

Invisibility: [d][d][a][a]

Berserk: [w][w][s][s]

" - TEM

"If you want a big explosion with the shock rifle.1 you shoot the right mouse button than before the thing hits something push the left mouse button than you will get an explosion" - kaboom

"Never stop moving it will be hard for your enemy to kill you. The more you move the better!" - Elexis

"If you want a good character, beat single player mode, you'll unlock Malcolm, Brock and Lauren. Malcolm has the best stats so use him." - Crusher13

"When using a rocket launcer, jump in the air and shoot at a downward angle at the opponent, it helps and is a little more accurate. Also, be sure to check your back very often, players come out from everywhere." - xdragonslayerx

"Never stop moving, a still player is a easy target. Also never stop dodging, but not with foward dodge.....if you dodge you move quicker and you are harder to hit." - {UE}L33h