What a delightful little prototype. I've seen a bunch of multiplayer based ones in th is jam, and this one is probably one of the most intereting ones.

Too bad its only an early prototype.

You better release a full demo of this, you can have all my simellions, I dont care, I want it, and I want to play it forever,

On a serious note, good job! It was amusing to move around in the level. So overall, I will give you a 3/5. The idea is too clever to simply put it as a 2/5 as I usually do with prototypes.

Keep working on this, It can become something real fun, I can feel it.

Seems like it could be quite interesting if fleshed out correctly. Got really spooked the first time I saw myself through the portals haha. Also, I love the track! 

The main track is such a bop, I love it! The core idea of your game is really interesting, though without other players or objects to interact with it's tough to get a feel for how it would shape up fully. Would love to see where you go from here!