Shoot bullets at the black rectangle.
Lots of colored rectangles are going from top to bottom. But we need to remove the black rectangle. To remove the black rectangle, shoot 1 black circle towards it.
Do not mistakenly shoot at the color rectangles.
Version history
2.1
2022-11-08
Fix bug after upgrading the game interface
2.0
2022-11-07
Enhance performance.
Upgrade gameplay and game interface