I think the map looks very cool! I also enjoyed the ability to upgrade yourself with the cost of a downgrade. However I do think that the enemies needs to be nerfed a little bit, I think they're a bit too fast that Ive had moments where Im leading a horde of them only to be caught off guard by a single enemy running from the opposite direction ... which often led to me struggle to get them off of me. Other than that I had fun running around the map blasting the enemies. The music you selected also fit very well with the game. good game overall, nice job!