Devil May Cry 4. Starting out with Nero and about 5 moves was horrible. By halfway through, you have access to more like 25 out of 40 and have full access to his Devil Bringer (counters, attack animations, etc), Blue Rose (charge shots), the Exceed system, and other combos. And then you also get Dante. By then end you have access to quite a few weapons and moves with Dante and Nero. And after your second playthrough, you get Bloody Palace (where I have probably dropped over 50 hours in to).