WAD to move. Space to shoot. Up arrow key to use super. The robots attack with lasers. The robots' health points are labeled on the robot. There's a kills counter on the top-left corner. M key to mute music. Number keys to switch cats. Cats are 1-5. T key to show/hide cooldown variables. Play on TurboWarp for better performance. This is a laggy game (on bad performing computers). https://turbowarp.org/1082879858
Thanks to @Supersam8203 for the idea.