Pretty punishing game, especially after my entire screen turned red when I hit a crow. But the enemy spawners perfectly fit the theme of the jam, and I like the HP=ammo system. It was kind of difficult to progress with such short enemy attack cooldowns. Maybe the cooldowns should decrease as the player's lemming horde grows?
Appreciate the feedback! Your screen is definitely not supposed to turn red. I'm pretty sure you accidentally highlighted the game window (I was able to recreate it).