LogFAQs > #904646799

Crash 1 has always been the most difficult, but they messed up the game for the remake by giving Crash (the character) physics from the third game but not adjusting the levels in the first game to match. The second and third games get other jump abilities to make this a non-issue.

There's also the newly-rounded edges. Before, you either made a jump or you didn't. Like Mario, you could be 80% off the ledge but you're still safe as long as your toe is touching. Now, if you get to close to any ledge or platform, Crash has a tendency to slide off. It's more realistic but makes for a frustrating platforming experience.