Unfortunately there's bugs.
Notably I found that after a few waves of enemies all of a sudden a massive wave comes to kill you lol.
Also sometimes the polymer resource doesn't sell (the metafab shop offer doesn't go through). I think this might be if you leave the shop before it going through.. not sure. I should have left that system go and not changed it so close to the deadline..
Also the in game music is supposed to be able 5x louder. I actually already fixed that bug though.