When the JP version of Etrian Odysey 3(drowned city) was out, some jap make a code that allows subclass' special skill to be shown normally on custom menu 020ABEE4 E1A00000 Now I want to make one in US version of game(sine nobody made that), but my first test failed. Here's what I have done: Since there's no obvious value to be tracked, I checked the original DWORD value stored in 020ABEE4 , which is 1A000015 (15 00 00 1A) and confirmed the change of value to 00 00 A0 E1 and how the ingame effect comes in. Then I found 40 address in the US version having the same DWORD. 40 trials isn't long, but sadly, none of them is successful. I start to wonder what else can I try now, since I'm new to this kind of thing. Please give some suggestions!