Use left arrow and right arrow or A and D to control the cat (space bar is jump), if you touch the snake then you lose 2 HP, if you touch a diamond you gain 1 Diamond. In the shop there is armor, the armor give you 60 more health. You can repeatedly buy the armor and repeatedly get more Health. In the upgrades when you buy the Shrink ray it will changes the snake's size by -5 (it costs 30 diamonds). The armor cost 50 diamonds though. If you have 0 health you lose. if you move to the edge of the screen you get to a different place.
