The goal of the game is to pierce all targets, which can be targets of various materials and powerful bosses.
With just one finger control, tap to throw the knife up and spin, tap again to launch the knife. If you do this, you'll be dead!
If you collect more coins around the target, then you can buy cooler knives, swords and daggers from the store.
With more diverse objectives and beautiful backgrounds, you'll encounter a "boss challenge" at every level.