And just like that, you've unlocked everyone. If you wanted more, your best hope is DLC, I guess. How many of these guys have you unlocked? Did I miss some big secret and not discover someone on this list? Let me know in the comments!
Hungry for more characters? Check out the ever-growing Super Smash Bros Wii U roster (opens in new tab). And if you fancy some Batman goodness, check out the 28 hidden characters in Batman: Arkham Asylum (opens in new tab).