A nice tower defense game! The music and sound effects add a funny touch, and the genre itself surprisingly fits the Uninvited Guests theme. That said, I didn’t quite notice a unique spin on the theme beyond the general setup.
It’s impressive how many enemy types and upgrade options you managed to include. Seriously, that’s a lot of content for a jam game. The controls work somehowl, and overall game play feels good. The upgrade and placement system could use a bit of refinement, though. For example, it’d be great if the UI closed automatically when selecting another tower. I ran into a few bugs: I was able to place a tower directly on the road if I clicked too fast after selecting it or hovering it over the map, and sometimes the upgrade menu was unreachable when a tower was near the map’s edge. Sometimes I was able to stack multiple towers, which also would break the game. Also, when my health dropped to 64, everything suddenly turned grey and the game ended. It wasn’t clear why (but I also did not check what wave I was in here).
Still, this is a strong entry with tons of potential. A few tweaks and bug fixes, and it could easily become a really fun and polished tower defense experience.