Try pacing yourself in a rhythm instead of pressing the buttons as quickly as possible. Basically you have to wait for your legs to switch before switching back. Let me know if you still have trouble.
still having trouble but it's probably just me, i've never been good at rhythm games and i've found myself having trouble with them on gameboy especially.
OK in that case I have another dirty trick for you. Because of how its programmed if you just let the other runners go and don't run at all for a while and THEN run to the end, there's a bug where you win.
