nice!

But i find extra idea.
Hunger (Levels editors can be choose if enable):
You will need to eat food (and carrots) when you are very hunger! If you Hunger bar will empty. You must go fast for food before you die
If you are very hunger, you CAN'T run and for spaz double jump and hunger and fly ears rabbits can't use that feature. Also very hunger will lose 1 heart per 5 seconds.
NOTE: IN EASY THAT FEATURE WILL BE DISABLE AND WORK ONLY ON COOP AND SINGLE PLAYER.