This is a special game.
The surface appears to be a bullet-screen game, and there is actually a deeper story behind it.
Game manipulation is easy and easy to handle.
But it's hard to get through.

game characteristics

there are many elements hidden in the game.
The game changes after each death.
Your choice will affect the final outcome

game saving mechanism

you can't keep it.
But the computer will help you save it automatically after you die