Teen Titans: Trouble In Tokyo (2006)

Continuity mistake: When Raven is attacked by the shadow creature in the graveyard, it leaves a number of smears (ink) on her cloak. But as she proceeds to phase through the tombstones in an attempt to shake it off, the smears have vanished.

Cyborg: There it is! The only Japanese I need to know: All You Can Eat.

Trivia: For those who are interested in what Nya-Nya (the Catgirl) says to Beast Boy during their first fight: She first tries to tease him by saying how much she likes to get him angry. Later, after she kisses him on the cheek, she says, "Close your eyes. It's gonna hurt."