How to extract images and sounds and music in the jar file from any Gameloft java games?

Question

I have a mobile game in Gameloft’s JAR Format I can’t see where the images and sounds and music are.

I only see some bin files (Conditionexpr.bin and Resinfo.bin), some class files (a. class, b.class, c.class, d.class, e.class, f.class, g.class, Gloftshfa.class, h.class, i.class, j.class, k.class, and some files numbered from 0 to 999 called dataIGP FLSC.

I think the images and sounds and music in the game are in which of the files? How can I extract them?

Answer 1

The format in which images, music and etc are recorded, is something that is at the discretion of the application developer. Generally, nothing too out of the ordinary would be used, but some developers might have reasons to use things out of the ordinary or with multiple layers of encryption and obfuscation to hinder the reverse engineering process.

So, to start the reverse engineering process, start decompiling the JAR. To do this, follow two links of modern Java decompilers:

• https://bitbucket.org/mstrobel/procyon
• http://www.benf.org/other/cfr/