Music was cute. The sprites were great. The day/night timer was a neat idea. However since the monsters can just walk through everything, there wasn't any reason to not just fill everything up with holes. Things that could be done now to increase difficulty would be to have more enemies spawn as the days go on. Also you could have the holes lose durability so that you have to replace them.

Good job on this :)

The music is good. But I hope the sound effects of enemy falling into the holes could be toned down a little.

Placing buildings is kind of wonky. If you click on them, they just place them behind the menu and you end up losing your money.

Besides that, needs more content. Get that and this is in a pretty good place.