Pandora and Akubi

Pandora and Akubi (パンドラとアクビ, Pandora to Aruba) is an original anime theatrical crossover film by Tatsunoko Production and XFLAG. It premiered on April 5, 2019 for 2 episodes entitled "荒野の銃撃戦" and "精霊と怪獣の街" while serving as a commemoration to the Genie Family franchise's 50th anniversary.

Plot
Pandora from Monster Strike and Akubi from The Genie Family team up on a dimension-spanning quest to find the "Pieces of Calamity", mysterious artifacts that exhibit world-destroying power.