Hmm. I guess it would be managable if you had a chance to collect some powerups in previous levels. The whole thing is very chaotic and it's hard to figure out when more enemies will respawn, or what will hurt you and what won't.
It has some technical flaws, too. For example, I don't think the dragons hid inside the blocks you stand on in the beginning are supposed to hurt you while you're standing on top of them.. but it happens.