Slayer

(this game won't be updated, check out Slayer II)
You become a soldier that's on a mission to kill demons in hell. #horror #arcade #retro #survival #shooter #endless

Controls:
WASD - Move
LMB - Shoot with main gun
RMB - Shoot with secondary gun (doesn't use ammo)
Space - Buy 10 ammo for 5 coins.
Tab - Buy one medkit for 25 coins.
Q - Use one medkit.
Shift - Run
K - Suicide
P - Pause
E - Exchange 5 coins to 25 to 150 points.