My only experience with Super Mario World was accidentally (on purpose) overwriting my older cousin's save during a visit after playing for a few hours and not wanting to lose my progress. It didn't matter in the end, because he never let me play it again. So it was back to Super Mario All-Stars for me. Finally getting to play it all these years later has been fun. I hadn't realized back then that all the Mario games in All-Stars were originally for the NES and that World was made specifically for the SNES. Playing them now, the enhancements are obvious. Yoshi is in this one! Come on! But—call me crazy—I think I prefer the older games. Still, I recommend it.