whoa hey tic-80, that's a first
this is very charming, especially the juxtaposition of little black critters against a bright cheery townscape, haha. it's simple but in a kind of arcade way where i don't mind replaying it some number of times. also i love upgrades. tasty.
that said i think you have a slight design problem here. it seems like the obvious optimal strategy, which the game almost explicitly encourages, is to just convert a couple screens and then return to the factory. because the cops are brutal and easily three-quarters of my play time accomplished absolutely nothing, because i'd have 30+ drones and then waltz onto a new screen, bump immediately into a citizen, get trapped in a conversion, and be shot by a cop one foot away. and there is nothing i can do about this whatsoever. so the only solution is to play extremely conservatively and "bank" my drones whenever i have more than a handful. there's no real downside to doing it; i lose out on the bonuses, but they're very small, i probably wasn't going to get them anyway, and they don't remotely make up for losing 30 drones.
also i assume the collision is tile-based here and that has definitely killed me a few times too because trees do not look like they are that big haha
i had a good time! i say all this in the hopes you can make even better times