* Align blocks and clear them!
* Game over if blocks stick out of ceiling.
* Clear lines once as many as possible, and get additional scores.
* Level up per clear 10 lines.
* Metal blocks crash other blocks under them.
* Solid block (with white frame) should be cleared twice.
* White Cross is rotation center.
Last updated on 2016年01月17日
Minor bug fixes and improvements. Install or update to the newest version to check it out!
