In Klonoa 2, I got all 150 dream stones in all of the story levels, got all of the stars, and got the all of the stones in the chamber of fun, I was going to get all of the stones in the chamber of horror, but not only was I having a hard time powering up the crystal enemies, but the level is hard enough as is and I wanted to try it when my arm was feeling less like taffy, so I just beat it instead.
"Practice safe hex, use a backup" -Some guy