So with backspace you can restart the level instantly with out exiting the game, relaunching the game, re-choosing your character, reloading into the game and finally playing so you can practice (also if you want to redo the cups falling on you you can press backspace in the loading screen after choosing a character lol). and here comes the fun part, with p you can spawn infinite presents that would be on the level, sometimes you even get ammo boxes, also...It always has free xp boxes meaning... Infinite enemy's in one room... heheheheHEHEHEHEHE!!!