As hard as playing Echochrome (PSP, PSN) is, keeping track of the different versions of the game could be just as tough. Ok, maybe not, but it's still tough. The PSP version Echochrome was finally released in the US a few days ago, but apparently it doesn't have all of the modes that are available on the Japanese version.

The Japanese version of Echochrome is available on UMD as well as through the PlayStation Store, while the US version is only available through the latter. It's been found that Japan's UMD version has three available modes: Solo, Pair, and Others, while the downloadable US version will only have solo mode.

Solo Play is the basic mode where you have to guide your mannequin towards the "echoes." The Pair Mode has you guiding four moving figures, and you have to make the mannequins with the same colors touch. In Others Mode, you'll have to avoid other mannequins that are moving around, or else you'll be sent back to the the last echo you touched.

It's not so bad though; the Japanese version costs JP¥ 3,980 (US$ 38) while the US version only costs US$ 9.99. Who knows, if there's enough demand for it maybe they'll release an expansion pack or something of the sort.