Really cool and lots of good ideas and nice pixel art (tho no animation) but the game needs a fix with its difficulty. The game starts out pretty average difficulty, and then becomes insanely easy as the amount of towers you have just insta-kills anything that spawns. eventually, the game suddenly bursts with tons of enemies making the game incredibly difficult and quite laggy. making enemies able to destroy towers instead of just spawning more enemies would be a good way to fix the difficulty curve here. Nice concept tho