I love this game, I feel like it could get more content updates but other than that, the only thing I don't like is how Stage 5 plays out, it is more of a camping stage, you wait at spawn till all of them are gone, you rush to get a Baby Munchi, go back, repeat, but still love it.
In the content updates could be some new entities, like someone that pretends to be a baby munchi, or some more new buildings, a somewhat animated ending after being done with the game, these are some ideas if you would like to update it for a little longer, but even if you leave this game as it is, you should definitely make more nextbot-type games!