Long long time ago, from age when iPhone 2G was top notch device. I`ve worked with dev team as freelance 3d generalist. Custom 3d engine, hard baked textures, detail maps, light maps, tile maps all that with max resolution of 128x128, vertex morph animations via batch of .obj files (max 3 per movement), extreme low poly all that is here. Good old days :) Nostalgia :)