the value found is the credits value in ikaruga, the 63 after means 99 in hexadecimal until there I've understood everything, but now I have questions: - What did I do with the Ikaruga.CHT file ? - Did your tool recognize it and freezes the value automatically ? I don't see the utility of creating a.CHT file. My 3rd part editor can save the adress found. And the next time I'll play, the adress remains the same PS: my computer is not very powerfull, and when I launch your tool its makes my computer going VERY slow ( about 0.1 to 10 FPS ) The speed tool verys between each computer and game ran on that computer.