Every single boss in Kingdom hearts dream drop distance 3DS. I will always use this as my answer to this question. No other game has caused me so much frustration in boss fights. Not because of death. But because SOME MORON decided to set the switch timer to continue during boss fights. And you bet your ass that the second you get that boss to 1 health and you see the 30 second timer appear that says your gonna be switched to riku or sora when it ends, that boss is gonna shield himself or do something that prevents him from getting damage for that entire 30 seconds. "Oh sorry about that, here just switch back and OH look at that the boss has full health now, we also didn't restore any items you used before. Have fun!" EVERY. SINGLE. TIME. [spoiler]i would not handle dark souls well...[/spoiler]