On the surface, Chillingo’s graphics engine and general concept have a ton of appeal. You’re given the ability to build your own character, complete with tattoos, skin coloration, and clothing, and throughout the course of a fight, his eyes will swell and bruise from punches, while his opponent will do the same. Dramatic though not bone- or cheek-wobbling Fight Night-style replays accompany knockdown blows, giving you a close view of the…