It was so long ago I honestly don't remember what I did, but I do remember beating it, the ending, and a few different parts. I'm sure if I tried to now I prolly couldn't beat it, I think it was just the "masterful kid syndrome". You know, the same thing that let you beat NES games when you were a kid, like Megaman, and now you're like "wtf? This game is so hard!"
Rez was pretty fun and cool, though not really all that weird as much as it is a bit niche. Child of Eden is a lil weirder, but not that much. Something like Noby Noby Boy though? Now THAT'S weird lol.