Needs instructions and tedious

Very tedious and no instructions. Sometimes you have to hit a block once to get rid of it and other times three times, but you never know which. Also, there is no indication of how long until you complete a level. Very boring and tedious. The original Breakout from the 70s is far more engaging.

Seatacflughafen about Grey Cubes: Unique 3D Brick Breaker