Complex sentence: The game was released in March 2006 after two months of development, during which Chen and Clarke had to teach themselves Flash; by May, a PlayStation 3 version was announced for the PlayStation Store, and was released in February 2007.
Split into simpler sentences: The game was released in March 2006, after two months of development--during which Chen and Clarke taught themselves Flash programming. A PlayStation 3 (PS3) version was announced for the PlayStation Store in May of that year, and was released in February 2007.