To use All Knives Except the Saw knife so I still need it so if you get 20 knives or higher And press this button on the knife selection screen and play it and there you go!! ("And This How To Use All Knives")
WARNING: UNLOCKING TOO MANY KNIVES AND PLAYING ON ALL KNIVES MAY SUDDENLY GLITCH YOUR GAME LOWERING FPS FOR EVERY KNIFE AND TURNING THEM INVISIBLE don't do this challenge til an update