It is good, but the game cuts after completing the second test chamber, you have to load the next map manually and its not the full game, the lighting and accuracy to the original is very good tho (but i would like to see a change with the weighed storage cube textures) And the russian GLaDOS was bothering me a bit so i replaced the russian voicelines with the original ones, other than that, good attempt at porting the game to the legendary PSP.