Ripping 2D-Adventure Game - 150$ Reward

[rufaswan]

Hi! I never expect you are still here! Welcome back!

Being trying to use that IDA from ScummVM, and now I can see why nobody can help you. IDA can analyze only the DOS-extender stub on the beginning, and not the engine part of game (the part I need).

Tried DOS box debugger, but the thing just keep crashing.

Looking at TerraGlyph wiki page, I noticed "Tiny Toon Adventures: Buster and the Beanstalk" also uses .TGR file, and it is a windows game, so it has a 32-bit .EXE. IDA can analyze this.

Found the decompression code at sub_40ff70, and I got something:

Spoiler

Naturally, it also works for Hansel and Gretel

Spoiler

The decompression is just like Final Fantasy 7. Read a byte (8-bits). If bit is 0, copy next byte, if not refer to dictionary. Good old LZ77.

Unfortunately, it only work for backgrounds. The sprites uses different function. I already located the function is at sub_408e60 and in middle of translating it. It has a messy 20 switch cases.

I'll update you when I'm done.
- Rufas