Yeah, I didn't like it, either. The levels were often really vacuous or downright annoying and confusing (especially the final world) and Road Runner was a complete pain to control for any kind of more precise jumping.
It was a challenging game and I'm not quite sure why I put up with it long enough to beat it. It's dangerously close to being worthy of an AVGN review.
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Essy, Avian Enthusiast