Hey Josh! I think this is a really fantastic prototype. It really takes me back to playing Portal Flash version. One gripe I have with Portal in general is that I think the portal-able surfaces need to be more distinct, and I think that applies to this game too. You did a pretty good job, I just think it could stand out a little more to let the player know what isn't portal-able. Adding more types of levels as well as portal mechanics such as portal jumping would really enhance the game. Also the music was dope.