Catnapped!

Totsuzen! Neko no Kuni Banipal Witt (とつぜん！猫の国 バニパルウィット , Totsuzen! Neko no Kuni Baniparu Uitto ) , known outside Japan as Catnapped!, is a 1995 Japanese anime feature film, directed, created and written by Takashi Nakamura,[1] who was also its character designer. The animation was produced by Triangle Staff. The theme song of the film was performed by Mayumi Iizuka.

Toriyasu and his little sister Meeko's pet dog Papadoll has been missing for a week. Toriyasu thinks he ran off, but Meeko claims it was an alien abduction. The next night, Toriyasu and Meeko are visited by three feline scientists, Henoji, Suttoboke and HoiHoi. They take Toriyasu and his sister Meeko on a trip to the cat world of Banipal Witt. Upon arrival, Toriyasu and Meeko are turned into kittens by the magical sun of Banipal Witt.

The children meet Master Sandada, a powerful wizard who explains that Papadoll has been brought to Banipal Witt and turned into a giant, flying monster by the evil Princess Buburina, who hopes to use Papadoll as a weapon. Meeko is taken hostage by the princess and things begin to look grim. Sandada says that only Toriyasu has the power to turn Papadoll back to normal and it must be done before sunrise or he and Meeko will suffer the same fate.

Later that night, Buburina tells her prisoners of her plan to create a giant mouse balloon that would be used against anyone who would rebel against her. Meeko demands the return of Papadoll and calls the princess a witch. Buburina plans to make Meeko her new slave once the sun rises.

Under cover of night, Toriyasu and the three scientists, along with other rebels, prepare to sneak into the castle to free Papadoll and save Meeko. The plan goes awry when Toriyasu slips on a rope, waking Buburina and setting off alarms all over the castle. Quickly, the rebels regroup in time to see Suttoboke and Meeko release the mouse balloon. A massive air battle ensues. Toriyasu tries to take Papadoll back. Buburina, however, refuses to give back Papadoll and nearly makes Toriyasu fall to his death after Buburina tears Papadoll's collar off. During his fall, Papadoll finally remembers Toriyasu. Quickly, they rescue Meeko and make it home.

The next morning, Toriyasu and Meeko return to a normal life, but when they go to school the next day, the cats beckon them away on urgent business, setting up for a potential sequel.

Sources:[2][3]

The actors are listed original voice actor first, English voice actor second.