wasd to move, space to jump, e to dash but only when looking at enemies, 1 and 2 to swap between weapons (1 is the water gun, 2 is a pool noodle, 3 is a sprinkler and 4 is the water balloons) and the mouse to shoot and look around.
Link to the only way to play: https://experiments.turbowarp.org/pointerlock/1188579068 Credit to @Griffpatch for the 3D engine