BOPZ: Zombies

my first indie proyect based on call of duty, you can buy ammo with 80 points and only collision with the object and buy the ammo, can you survive the 3rd round? The game is on demo but i think that i can't continue the proyect, maybe i will continue trying to improve it, but i don't have much time, I'm learning and I'm new in all of this

E,Q: Change Gun

also compatible with gamepad