Thanks for the feedback!
The heavy enemies toward the end can be tough, you really need towers along the entire path and enough supply to keep them firing constantly, it's not easy but it should be possible to get through it.
Upgrading towers was planned but I didn't end up having enough time to design and implement the necessary UI, so I simply added a countdown to each tower and turned it into the boost mechanic that's in the game now.
Yeah, those last rounds were meant to spawn basically all together and try to rush your towers, so you needed towers along the entire path or some of them would get through. But I messed something up when tweaking the campaign timeline and now the last couple of waves are super slow and easy. So you just have to wait those out if you want to see your score. The lesson here is: even tiny last-minute changes should be tested properly. 😄
I don't know yet if I'll continue working on this game, but if people like it then I might expand the campaign and add some more levels.
Thanks for the feedback!
The bad news: Removing buildings was a planned feature but unfortunately I had to cut it to make the submission deadline.
The good news: At the end of each game it shows a screen with your final score for that game and a bunch of stats including enemies destroyed, money earned, money spent and carrots harvested. So it's in there, you just have to play a little longer to see it 😄