Just so you know here are the controls: Green (P1) uses arrow keys. Red (P2) uses WASD keys. Blue (P3) uses 8456 keys. (best when on computer not laptop) Yellow (P4) uses YGHJ keys. I fixed it so that the part with the slanted lines is actually possible.
Really all I did was set it so if you touch the black you restart, and also I just put it so when you press a designated button your block moves either 5 or -5 in x or y so it was pretty easy to make and next I will try to make some kind of battle! And hey guys check out Pokesnails remix of this game: 4 player race- scratch style!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!