Speeder bike section is child's play compared to later on in the game. In fact, I even have that warp timed. It's the 10th pillar of the end section, and you warp right past that damned hard ice level.
I got to the end level ONCE. I never cheat, and I have yet to beat this. Hell, I picked it back up the other day. The key to doing well is rack up as many free lives in the crater stage as you can (after you get the beak sword thingy, keep hitting bird corpses to get more and more points, until the 1UP appears).
I can get about 10 guys on this level, and you'll need 'em all.
Spike