I found this game from your post and subsequent conversation on the thread "Since Everyone else is making a rate-for-rate post". It looked like it would be a very interesting game.
It is! For a 48 hour game, there's quite a bit of "juice" with the dimension-switching mechanic. The game looked great. It's definitely fun to play, even though I couldn't get very far in it because I'm not great at platformers. The only time I didn't like it was when I had difficulty judging where the areas that could kill the player were in the world the player starts in. Maybe you could use a dithering pattern to make it stand out.