WASD keys to move. Arrow keys to rotate. Space to go up. Z to go down. FPS indicates the speed of the game. Resolution divider controls the resolution of the game. Less res div, clearer scene render, but extremely laggier project (unless you use TurboWarp). On vanilla Scratch, res div of 6 is best balance for quality and acceptable framerate. 8 and above are faster, and 5 and below give higher graphics quality. On TurboWarp, I get ~30 FPS down till a res div of 2. Res div of 1 gives me ~11 FPS. (If you thought that's bad, vanilla Scratch gives me ~0.36 FPS! XD XD XD)
The thumbnail is the texture used. Is this Mode7? I don't think so. I mean I used my raytracer for the floor, not projection...