This section is incomplete. Please feel free to edit this section to add missing information and complete it. Reason: Describing Gigantamax Appletun's appearance.
Appletun is a large dragon-like Pokémon inhabiting a body reminiscent of apple pie. Its body is mostly green with a yellow underside and lower jaw. It has a piece of an apple on its head worn as a helmet. Its eyes usually droop down from under the apple helmet as though they were ears, but may be lifted up to reveal leaf-like eyestalks holding small beady eyes. It has black slits for nostrils on the tip of its muzzle. It has a large hump on its back with a several overlapping stripes that resemble an apple pie's crust. It has red and green leaves on the top of its pie-like back. It has short, bulky legs with paws, and a stout tail.
Appletun produces a nectar-like scent which attracts Bug-type Pokémon, which it preys on. Its body is caked in sweet nectar, which gets thicker when exposed to Gigantamax energy. The skin on is back is said to be tasty, and children used to eat it as a snack.
When Appletun get exposed to Gigantamax energy, they change into the shape of a giant apple. The sweet nectar that covers its body increases in thickness, allowing it to absorb more damage than normal. It can shoot out nectar, enough to be able drown its opponents in the blast of nectar.
Appletun may be derived from Appleton, a toponym that means "an orchard" or "place where apples grow". Appletun may also be a combination of apple and ton (referencing its bulk). It may also be a play on apple turnover.
Taruppuru may be a combination of tart, 怠い tarui (sluggish), たっぷり tappuri (onomatopoetic word for plenty), and apple.