During the missions is Asgard you may talk to Weasle after completing one of the two missions available. Weasle will be in the Hall of Heroes. After he talks to you, talk to him by pressing X. When you ask him about the Ex mansion, the subtitle reads "Makes me wish I was a mutant. They've got everything here - tennis courts, a pool, and a subbasement full of hi-tech gear" however the voice artist clearly says "They've got everything there", which would be the correct way to say it.