I feel like this game is an interesting proof of concept; you have various levels, items, ways to use the call/summon feature. I think if you wanted this could be quite an interesting, longer puzzle experience - maybe going from where you are now as the game ends to outside and then more exploratory, or just similar to portal with long winding trials to get through and getting out is the end.. as it is, it's an interesting concept and I like the way it plays!