Polishing knife target Hit the target and kill the target: Boss is rare, you can only play once, don't let them run away! Throw the knives into the log to break them. Cut the apple and unlock the new knife. After passing all levels, you will decide when and where to stop. Be careful not to touch the knife or tip. Timed action, careful aiming, become a ninja knife! Every 20 levels waiting for you a ruthless boss, ready to let me lose; Checkpoints are automatically saved for every 10 levels of the game! The final flying knife will challenge the challenge where you have to throw a knife.