The game works perfectly on my US Genesis, sadly however, a few of the segments that involve actual text based dialogue are in pure Japanese. I thought that since it's a JP ported game to a US cartridge that they would mod/translate the Japanese text to English, sadly this is not the case, it is only like that for basic things such as logo, settings, a few level names, etc. If you want a US version of a game like this translated I would recommend a physical ROM or some kind of hack of this cartridge, If somebody can tell me how I could "fix" the game so that a few of its text would be in English then I would be extremally appreciative, But all in all it's still a good game(if you can get over the whole language issue), would recommend for new buyers.