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
The S
Skate
Conne
Hobin
Pengu
Bubbl
Color
Spira
Fancy
Retro
Super
Avoid
Monst
Set B
Draw
Good
Infin
Clown
Black
Deer
Color
Baby
Magic
Cross
Clock
Toile
Kingd
Chine
Perso
Seaso
Stick
Milit
Block