It sounds like they hand created the model, and hand rigged it, and the entire process took 18 hours (entire meaning from 0 to game proto) so building the model, applying UVs, and rigging, was some sub-portion of that 18 hours
Does that fit other people's experience of how long it generally takes someone to model, UV map, and rig a character?
edit: If it's not clear, it sounds like it took 4-6 hours to model, map, rig. Since they still had to spend time generating the character sheet, generating the city and alley, and turning it all into a playable prototype in that same 18 hours