Since you already created a Japan PSN account, then you will notice something new when you visit the Japan PSN Store. The Echochrome demo is available for both the PS3 and the PSP. It gives you a quick tutorial explaining the 5 laws of Echochrome. You then play several levels and get used to moving in M.C. Eschers world.
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[Source: Sony PS3 Modding - Homebrew, Upgrades, Mods, and Hacks]