Rotate and drop the different blocks but be careful that they don't get stuck!
The purpose is to get the blocks to fall down to the bottom of the screen, when a block reaches the bottom you get 1 point.
If you have enough points you finish the level and unlock the next level.
After a while bombs and exploding blocks are added. You can also use a nuke to clear the way.
There are 20 different levels and level 20 is a unlimited level (unlimited blocks).
Can you manage to finish all levels?