I personally like challenging platformers. I think some people are just less patient, my sister struggles with platformers and gets frustrated. I finished in 14:54, all items collected and 225 deaths.The only platformer that's really annoyed me is New Super Mario Bros. for the Nintendo DS, there are just some insanely tough levels and it really annoys me that if you lose all your lives you have to restart from the last castle. Maybe Mario isn't a bad series, I just had a bad introduction. But that's the only Mario game I've played.