IT'S 3D!! Move: arrow keys Jump: z key Roll: down arrow key (at speed) Crouch: down arrow key (static) Spindash: (while crouching) z key to rev up the spindash, then release down arrow key to perform Bug reporting is encouraged and this engine is intended for anyone to remix, no credit needed. Enjoy!
. . thanks to @tomicool for the oj 3d engine