Another power up could be tighter steering turn control and maybe change the platform shape on each new level from round to octagonal to square to diamond to triangle etc.....
Things to add: restart button, sound effects, multi player, 1 off power-ups like boost/turbo, magnetic shield, handbreak and size of car increase......
Also the double click is annoying after you click next level just start the level don't ask for another click to start.............Good game though even with the little improvements needed.
take your hater shit else where the title clearly says DO NOT PLAY ME that is not reverse psycology