retro engineering Need help decompiling sky arena and treasure hunting 2

[midorifox]

Hello, I've been looking for a way on how to decompile to extract the models from Sky Arena, Sky Arena Climax and TTG2 (Gensokyo Treasure Hunting);

It's purely for clean animations, such as a revised animation of Reimu fighting Sakuya inside the Scarlet mansion from th6. 

Issue is: TTG2 is basically the only one where the models aren't encrypted but the engine is so esoteric that just typing out "g3m file format" will usually print out a calculator or a 3d model of a mitsubishi bomber from world war 2. I'm asking you as a last resort.

What I'd like to extract are models, textures, and possibly the Level models too. I'd love convert those in a more friendly .obj or .fbx format.

 

Thank you for reading, I hope it's not an unreasonable request.

 

ps: off topic, but I've been inspired to try this both because model-resources doesn't have most models and because extracting the models from Street Fighters 4 and 5 was a breeze, courtesy of the Unreal Engine.