God, that frog level was trippy. Damn near broke my wrist! XD But two small points I need to bring up: On the rooster level, some of the text box is still the default. It says things like "Place Alternate Test Here". Closing it freezes the game but hitting ESC seems to fix it. It's the only time I've had this happen.
Secondly, you can place items outside of the range of the level editor. I discovered this cos I missed the "level position" slider and I couldn't find anything beyond the "clear" button to remove it. That could be on me, maybe I missed something, but I just don't recall seeing a tool or button for erasing a loan mistake.
I could mention the character editor has clipping issues but that happens with paperdolling. It happens in a LOT of projects, so don't worry about that, it's a common issue in programming. ^^ Otherwise, those are the only two issues I found during my playthrough.