Great feedback, thank you for the nice comment!
From our experience, once you manage to get to wave 80+, you can usually go infinite. We already plan on updating the game balance to fix this in one final patch after the jam is over. Luckily, it's quite rare for people to get that far, you must've figured out a really good strategy! ;)
We definitely didn't budget enough time for the balancing, especially since we kept adding new evolutions almost up to the deadline. However, it's definitely not an easy type of game to balance and hence I am actually very happy with the way it's balanced up to that "breaking point." Players seem to struggle to get beyond 25 at first, then they figure it out but lose at 40-50, which is quite a nice learning curve in my opinion. The problem only arises when people figure out how to get beyond that point, where we hoped the insane amount of cans together with the pollution would stop anyone. This is also where lag starts to be a problem, since we didn't intend for people to even get that far. (We actually already implemented many optimizations to allow 100+ creatures without lag, only once they all start shooting tons of projectiles, exploding and spawning things does it become problematic.)
Again thanks for the comment and glad you had fun!
P.s.: I love how crazy the game gets when you get far enough. Your video really shows this off nicely!