Needs just few changes to make it a super addictive app
1. Coins too expensive, should be just a coin to rotate not 10.
2. Unlimited coins option 9.99 usd?
3. When there are no more 2 consecutive blocks to place app should start giving individual blocks.
4. Allow moving the M blocks
5. Three m blocks should make them disappear a region around them.
You do these changes and see how addictive the people are on your game.
ChandraWho about
Merged++, v1.4