Hi!, I just updated my demo, here is the changes for those interested.  

gameplay changes

the watermelon now has health points and can explode

added a paint brush, useless but fun

the axe wont inflict damage when just lying still on the ground

polish

added double kill/triple kill/etc achievement voices

add canon sound when someone is eliminated of the game

the barrel and helmet do not instantly vanish anymore after a kill 

the dagger will be covered in blood after a hit

cosmetic hats are place above the helmet 

bug fixes

fix paint glitch at wrong location (was rare)