Your task is simple – swap adjacent Piyo Blocks to match 3 or more of the same kind to capture them. To level up you will need to capture a target number of each kind of Piyo.

The real skill comes into play when creating combos, which multiplies your score for capturing the Piyos. The bigger the combo you create, the greater score you’ll get!

3 GAME MODES:
• PIYO MODE – capture the target number of Piyos to level up
• HYAKU MODE – capture 99 or more of any Piyos to level up
• TIME ATTACK – you have 4 minutes to capture as many Piyos as you can

FEATURES INCLUDE:
• High Score tables for each of the 3 game modes
• iPod library access - play your own music in-game
• Hundreds of levels
• Hidden cheats to discover
• OpenFeint enabled
• Worldwide and personal high scores
• Over 25 different achievements to unlock
• Secret achievements to discover
• Online chat and social networking
• Facebook and twitter enabled

Source: http://itunes.apple.com/us/app/piyo-blocks/id331306853?mt=8