The Arena is made out of 1 mesh with low-poly mesh collider and separate mesh colliders for goals.
Arena:
1267 polygons
Albeido, Metallicness and Normal maps (4k,2k and 1k resolution maps are included).
Ball:
400 polygons
Separate material(Albeido, Metalicness and Normal maps with option of 4k, 2k, 1k, and 512resolutions to choose from).
Glowing Orb (for pick-ups) made out of 4 particle systems with three simple textures.