sorry for the wait, but it's here.
「無限回廊」is a puzzle game released in 2008 for the psp and ps3. you control, not the character, but the world around you to make a path for your character. you navigate your character around many puzzles, which get increasingly harder across the levels. the main mechanic is the use of optical illusions. for example, imagine a hole in your character's path and a pillar beside the hole. you can move the camera so that the pillar covers the hole, making the hole disappear from existance, allowing your character to easily cross. the main goal of each level is pairing your character with similar manifestations of it. these manifestations are black in color to contrast the white of your character and the background so that you can easily find them. the graphics are simplistic yet charming, however the resolution of the psp screen makes the graphics choppy, and it's sometimes difficult to line up paths for your character, as they need to be pixel perfect in most cases.
in conclusion, the idea and art design is nice, however the gameplay (or at least in my experience on the psp) is somewhat poor in areas. Maybe they are better on the ps3.