Left and right arrows to move Down arrow to soft drop q + e to rotate C to hold Space to hard drop scroll up to rotate, apparently... If you encounter a glitch, please tell me in the comments section because I'm the only one who play-tested this --reported glitches-- If a block appears to disappear when you rotate, it's only a visual glitch; the block is actually still there, but invisible. It should go back to normal when a line is cleared. This happens when you rotate a tetranimo but there is nowhere for the tetranimo to fit. This happens due to a strategy I use to decrease lag--the arena doesn't actually update when you move or rotate, only when a line is cleared.
