This is awesome! I love the idea and the gameplay/art/and sound all work together super cohesively. Feels like a flash game I would have played back in the day. It works really well! I actually disagree with the other commenters, I think the graphics were perfect for the kind of game you have. I dont know how they could be improved. I also second the other guy, an expanded version would be sick, maybe you have like a quota and can buy upgrades in between days? Great job!