4:52! I could definitely do better but I do want to look at a lot of other games in the jam as well. :D
This isn't the only game to allow switching between dimensions and for obstacles or enemies to only exist on one side, but of the ones I've played this is maybe the only one which clearly and easily shows those obstacles in both views. That turns it into less of a memorization and guesswork game into a platforming and reflex game with a bit of thinking (which I failed on at times.) That said, the spikes were less distinct than the other aspects as to which set were in which dimension, in part because of the small screen size.
Everything looks good and performs well, there are a tiny bit of collision issues when jumping against the edge of a platform but nothing game breaking. Great job over all!