Sorry, typos. I meant 12,21 to13,21. I can finish 12,21 with one cat but I'm pretty sure I need to bring two cats into 13,21 to rescue the cripid. I got that far once, but then couldn't complete the rescue so I moved on for a while. I'm hoping this is how I'll eventually get the star in 13,20.
Any hints on how to finish 13,22? I know you need to bring two cats from 13,21, I did that once but can't remember how. And I don't know what to do with them once I get them to the next room anyways.
Any hints for 33? I've been stuck on that one for a while and have no idea what to do. I can't even unlock two of the doors on the right side, never mind all four of them.