I didn't even know about 80% of the stuff in Wonderland until I went back and started breaking everything.
And KH2 worlds were far too linear. Especially TWTNW. They could've at least tried to make the castle a challenge to get through.
Ugh. And even if it wasn't really obvious what to do next (which it was), the cutscenes and dialogue after the cutscenes would highlight in red what you had to do next. =/