Kid V and Amnesiac - [...]
You just keep surprising me...

Room dualities are nice. For example, I just discovered the song
Run by Awolnation, which has got
Beautiful Things as a subtitle. They'd be great as roomnames too.
Megalomaniac: Not Undertale (to specify for the undertale-obsessed who connect every similar word to Sans' theme), but a room with statue portraying Viridian.
Jetpack Blues and
Sunset Hues: An Anamanaguchi song, actually. Perfect for room duality, or however for two connected rooms.
Requiem: A room with lots of spikes, but no enemies.
So, We Meet Again: Do you remember that
Dimension Open zone with lots of
gotoroom() scripting? There, this'd be a name for the main room, where you spawn a million times.