Knife Smash is a high-speed rush you won't want to put down! SmashÂ theÂ knives into theÂ object by tapping anywhere -- but don't hit any other knives! Keep smashing to progress all the way to the boss fights! SmashÂ apples to trade in for special knives along the way -- if you hit another knife, you could also trade inÂ apples to continue playing. Good luck and happy smashing!