Launch a projectile that destroys the building in front. But you need to pay attention to avoid obstacles that block the shells, or you will fail. Try to get yourself through more levels.
1. Cancel the bullet number mechanism
2. Optimize the user interface
3. Change the barrier mechanism
4. Add 3 new tricks
5. Added bullet firing rate upgrade skills
6. Update achievement function
7. Update the gunboat unlocking conditions
9Apps 4.9
