I imagine this as a room with all sorts of items sitting on the shelves, and when you activate the kitty it's trying to knock everything onto the floor. This is cute!

Has some kind of... post-apocalyptic? feel to it. Like there was once some grand platformer where all the hype was placed on its level editor, but the people who played it didn't know how to place items or exits, then the platformer and the company who manufactured it were wiped out, and all that remains is a simple fan-created level editor with a debug character.

It reminds me of games like N where the aesthetic is irrefutably as important as the gameplay.

On second thought, most of these levels as they are could reasonably belong on some mix between a side-scrolling fighter and a top-down fighter. All that would need to be clarified is the actual "solidity" of the tiles.