I had fun with this game. At the beginning it's kinda annoying and doesn't make sense, initially you are very underpowered and you just have to keep gradually building up resources until you can buy some permanent upgrades.

Once you have a good number of upgrades, the game gets into a decent flow where you have to remain somewhat engaged to get a viable build, choosing some objectives for each run in order to unlock stuff is quite satisfying and fun.

Once you get a good build going though, the game basically plays itself and I feel like the game becomes very boring at that point. You are just waiting for the timer to tick up until the run ends.

The variety in weapons and upgrades is pretty cool though, and even as you get more experienced you end up with crazier and more overpowered builds which do still manage to entertain me quite a bit.