Nice game! Really like it, but for me it just stuck after I finished 1 battle in Survival mode. I'm on the game screen where I can scroll and nothing more. Nothing happening and all I can do is start the Survival from the beginnig.
Sorry to hear that; that's definitely not something I've seen before. Did it present a dialog indicating the round was over? Had you won or lost?
I'll see if I can figure out how to reproduce it on my end. In the meantime, if it happens to you again, it would be very helpful if you could send me the contents of the Data/com.ethannicholas.cranktanks directory from your Playdate.