A log target rotates upper-center. Throw a knife from the bottom — it sticks and rides the target around. Land on a stuck knife or spike and it deflects: the run ends. Stick enough knives and the target shatters, sending you to the next level. Watch for boss levels every 5th round.
TAP / SPACEthrow a knife
ESC / Ppause / resume
Rretry after a deflect
Apples on the rim are worth +5. Every stuck knife narrows the target — time your throws.