[Mikey didn't have anything to do but shrug, he's not the best at explaining things and he knows it.]

Someone else could probably explain the crests and stuff better than I can.

I think it is, but I'm used to only Master Splinter having a name with those kinds of sounds, since his real name is Hamato Yoshi.

[Again he offers a shrug, unable to specify why it's is such an interesting thing to him.]

A roommate is someone else who lives in the same place. Almost everyone has one. I don't think it has to be, but sometimes I think it can be like having family.