WASD to move. Space to Sprint (You need to have energy). Choose your character (you need enough keys). The abilities are on the top right of the screen (they have cooldowns you just can't see). Your keys are right over the shop button and your health, energy, difficulty, and wave number are in the top left. There are only 10 characters, 1 difficulty, and 15 waves for now. More updates later.
Credits to @Seth37 for the background music. And also thanks to my buddy Dream12384738 for encouraging me to make this. (I changed one of the Grappler Noob's abilities due to it constantly bugging out)