According to advertising (even description of Amazon) and reviews by many game magazines seemed all versions to be the same.
You play from level to level and can repeat the level in Freeplay mode. There is also another "Fight Mode".
I rate the game with only one star because of false advertising promises.
Were promised an open world with 50 superheroes, explorable environments and a lot of playing time.
Of these, one is unfortunately nothing on the PS Vita. The game can be played through without much trouble within a day. Replayability very low. The cutscenes are seemingly copied from the DS version and are therefore very high inferior.
Almost 40 for such a game are not justified. Since it is better to full PC version grab (27)!