Level:
- Levels open in order. At the beginning of the game, only the first level is available.
- You can replay all the levels you have unlocked.
Aiming:
- Targets further away require more precise aiming.
- You can use grids on the design background to help you set the target.
Deadlines:
- Levels are not expected on time, so there is no need to rush shots.
- Sometimes the aiming bar rotates in one copy, and sometimes it moves back and forth. If it moves back and forth, it's easy to get the timing right if you shoot moving in the same order as when you measured the shot.