I have no idea, especially since I've never even played any of the Mystery Dungeon games. You can try asking in this thread though, and you should get an answer fairly quickly from someone a little more knowledgable about that game than me :)
Hey, can you answer a quick question? It's stupid but I gotta know. Can you nickname your partner in Mystery Dungeon: Infinite Labyrinth? I didn't see the option but I might have skipped over it. I know the game was just released today, though xD
How did you get that message I sent to HybridTrainer? Oops xD Well I didn't want to contact you because I've been in your hair far too much recently xD But that's fine, I'm just being irrationally impatient xD
I'm pretty sure it's fine as long as it doesn't include pornography, and as for swearing, since it's a video on your profile and it isn't anything insulting aimed at other members, it should do. Honestly I don't really think we have any rules for that, but I don't think anyone will mind it.