Use WASD to move around. Shoot the Lemons to increase your score. If the Lemons touch you or their deadly aura, your health goes down. You get +1 score for every time you hit a Lemon, regardless of destroying it, and you get +10 score for every time you destroy a big Lemon. The Lemons change with the holidays and occasionally just change for fun. Don't let their hats knock you away.
Tutorials from @griffpatch #holiday lemonoids