It would be awesome if this game had poison that would dissappear upon contact with a ragdoll, and then do continuous damage to the part of the ragdoll the poison touched, and at the same time spread throughout the ragdoll.
The best passive stats are jump, speed and resilience. Don't spend too much on vitality, 'cause you'll probably fall to your death when you're hit in mid-air before your health drops to nothing. + this so others can see.