So... is Gundam vs Hello Kitty finished or not?
It is a bit ambiguous in this case.
Why?
All detected relations are finished, but we could not confirm the source content in MangaUpdates. Please check the release order section for a complete list of relations.
Watching Order (by release date)
Here you have all the anime relations we detected ordered by release date, so you can see the reason for this status in context and also use it as watching order.
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Synopsis
Hello Kitty is getting ready for a relaxing tea party when her plans are interrupted.
Haro, a friendly robot, sends out a distress signal that only Kitty can hear.
Kitty bravely embarks on a journey through time and space, finding herself in the middle of a massive conflict.
She arrives in the Universal Century timeline, where she meets Amuro Ray and his powerful Gundam.
Kitty teams up with Amuro, hoping to use her unique abilities to bring an end to the devastating One Year War.