In Knife Hit up like a Boss 2021, you can throw your knife at the target to get rewards. There are three different modes in Knife Hit up like a Boss 2021 - Play alone, multiplayer and survival.

In single player mode, you can choose from four unique knives and throw them to the target to unlock them. There are various challenges to complete in order to unlock the next knives and to level up your knives. You can also earn rewards to get new knives. You can even continue playing and earning rewards even after unlocking a knife.

In multiplayer mode, you will be able to play with friends on mobile devices or PC. You can fight against the other players and win the game to get the rewards of a stage up. The higher the stage you reach, the better your rewards will be.

In survival mode, you can survive and survive. You have to fight with mobs to survive and get the rewards of a stage up. You have to pick up the resources that are hidden on the map and craft weapons and armor to survive.