
Japanese dog breeds like akita, tosa, shiba, kai ken. Meme animals.
Various kinds of Yokai - Japanese folklore entities and spirits.
Horned beetled because Kabuto Mushi\Kuwagata - keeping live horned beetles - is a popular kid thing in Japan.
Giant Robot styled pets - blocky like the classic robot animes.
Super Team styled pets, sort of like Power Rangers, which is a copy of original Japanese theme of Kamen Riders. A "rainbow set of armored warriors" style of show originated in Japan!
"SmoothieMons" kind of pets inspired by Pokemon/Digimon/All the various "monsters contained in small objects", which is also a trend born in Japan from the popular capsule vending machines containing small collectible toys in them (pokemon was created after those). I can totally see smoothie bottles growing into Smoothie Mons

More flavours of Pocky!! and overall Japanese food, like sushi.