[Asriel doesn't understand, but at the moment he seems more focused on his toys then the fact that they aren't under a mountain. The five-year-old boss monster settles comfortable in Mettaton's lap, more so now that he can move his feet.]

My room is sooo much bigger than this. This big! [And he throws his arms up in the air for emphasis. Truthfully, his room back home wasn't that huge. The king and queen preferred a home that was warm and comforting, instead of large and regal.]

And it had lots of toys! [That part was true at least.] There's toys here but... they're not my toys. And Beary Bear is the most important toy! I even took him to auntie Undyne's house in Waterfall, and I tried to make him swim but he doesn't swim very well and it took him a real long time for him dry out!