Advance the stage while strengthening the cannon, let's destroy the city!
If you can destroy the boss stage, you will get a new cannon
In addition, the enhancement value will be reset, so you can play many times with various enhancement methods!
Cannons get stronger when you use coins.
The debris that scatters over the screen and the building that collapses briskly raises your mood!
If you get a new cannon, you can enjoy a different way to destroy it
Let's crush the city with a targeting bombardment!