Fixed the speed. It was actually my fault. Now your button inputs should be very speedy and now Tetris is in a playable state :)
— A/B can now be used for rotating
— two variables, BG_COLOR and SPRITE_COLOR can be used to change the palette colors.
(Also Timo why do true statements produce a -1. PRINT 3>2 displays -1 rather than 1.)
Get LowRes Coder to use this program.