it's, cute? i guess? but every single level is the same slog of running around in circles and watching as your employees kill things and your computer gradually lags more and more. you might jump repeatedly to go faster and maybe relieve the tedium but then you'll accidentally select the first option in the upgrades because the buttons are the same and the menu appears without warning. not like your upgrade choice matters because it's mind-numbingly easy nothing changes, unless you pick a support for your first recruit