I've played the Japanese version already, and I know they were left out or hidden away on disc. You NEED to put them back in. The were locked content on the disc for the original EDF 4/2025, as proven by Xbox hackers' Youtube videos. Everyone expected the super weapons as a reward for clearing Inferno/100% just like on EDF 2017. We figured the 360 couldn't handle the massive destruction, considering the frame rate issues that were already normal. I imported the Japanese version of 4.1 fully expecting to experience the Genocide Gun, Armageddon Cluster, etc. and was extremely disappointed to find they still don't unlock. If they're not in this version, I won't be needing to double dip. I can handle the Japanese text just fine. There's not much you need to understand once you can get through the menus. I actually completed both Japanese and US versions of EDF 4/2025 on Xbox360 for the achievements, as well as the other 2 EDF games.