This app is a shooting game that consists of 20 stages.
At each stage, Japanese nostalgic background music (BGM) will be played. So, please try all stages, and hear them.
The difficulty is easy in the first few stages at least . And you can use CONTINUE function. So if you want to complete the game, maybe you can do it.
When you complete the game, new BGM will be added. (Max 4 times / 32 BGM)
You can operate this app using 3 buttons on the bottom of the screen. And if you tap the game screen, pause/resume will be done.