Shouganai

Your mission is to get all the diamonds you can find around 24 different game zones.

For that, you have some little ship that can move over the blue walls of the game area. There's also some red walls that you can't move over. The diamonds are all around the game area. There's a limited number of them in every stage, and you can see the number of diamonds left at the upper right part of the screen. When you get a diamond, a new one will appear randomly. When you get them all, you can acces next area.