Throw the blades, collect the diamonds, and then go up the level ladder. Remember that you only have a limited number of cutting weapons to complete each level. Don't play other swords or people and obstacles! Don't waste your knife in vain! Collect diamonds and buy new knives in the store. knife hit challenge is a retro game and old school gaming that you can play for free on DooDoo.Love. This web-based game and browser game and free online game offers hours of entertainment and competitive gameplay and challenging levels. Play now and see why knife hit challenge is one of the most popular games on DooDoo.Love!