I have done 5-6 runs by now and im really liking the game, however the one thing that seems to make the game impossible to win for me is the procetile spamming hardhats.
Once theystart shooting(triggered by either a cube of meat or an mystery egg spawn) they will wipe out pretty mutch all the defences in the neighboring lines before dying, their knockback amplifies this problem making them get behind enemy units and stopping any attempts of blocking their shots with an well placed cube of meat. I think making it so that they keep on advancing while shooting instead of basically going backwards might fix this. They are pretty mutch the single thing that has killed me every run.
Also the stone mask enemies dont seem to attack when next to your units they just stand there, im not sure if this is intentional or a bug though.