How about Playing Mayhem Area? In this game you have to survive by killing zombies. Make good use of the help, the ammo is very limited!
W to Jump A to Left D to Right Left Click to Fire
Slope
Lets
Need
Bubbl
Walke
Kids
Winx
Quad
Mafia
Love
Block
Color
Block
Run I
Jungl
Bug S
Gibbe
Car R
Diamo
Color
Void
Monst
The B
Lion
Xonic
Bts P
Glact
Train
Crazy
Valen
Xtrem
Red I
Slip