Great first game! I recommend making items drop less to make it seem more hard. And maybe different types of guns, like GLock18c and M9, and AK47 and M4A1
Gravity glitch : When you put in items, and test it, he'll move normally. Add another item and he'll move differently through the traps you added first.
Add a new mode called VS Mode. Player 1 has to fight against computer/player 2 with the Pong Ball and lasers to shoot it. When the pong ball hits the paddle, the paddle is hurt.