If you loved Urusei Yatsura: Only You, try Urusei Yatsura: Beautiful Dreamer
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by Mamoru Oshii, and they both carry the playful mood tag, and they sit in Animation / Comedy / Romance / Science Fiction territory. If that's the register that drew you to Urusei Yatsura: Only You, the second film will land in a comparable space — through a different lens.
playful
What Urusei Yatsura: Beautiful Dreamer is
That boy Ataru would screw up even a time loop. The school festival prep devolves into Groundhog Day with aliens. The only thing repeating is the same old nonsense.

