Watermelnyan is a rich green Yo-kai with lines of dark green all over its body. Its muzzle and paw tips are red, with a black nose and eyes that have two seed marks below each one. Its inner-ear is light orange, and a curly vine of a watermelon sticks out from the top of its head. The chest fur is red with a single line of pale pink on the outside and five black seed marks. A light orange sphere is attached to its collar. The band around its stomach is yellow and pale yellow with five black seed marks. The flames on each tail are dull gold.
Watermelnyan makes people want to smash watermelons but if you smash his head he'll curse you and your head will become a watermelon. But he can regrow his head.
Yo-kai Watch Animation
He makes a minor appearance in EP045 of the anime giving advice to Mr. Crabbycat while eating watermelon. He makes a minor appearance again along with a lot of other cat Yo-kai in EP161.
Yo-kai Watch: Wibble Wobble
Watermelnyan appeared in the Orcanos Terror Time event, and other events in the Crank-a-kai
Yo-kai Watch 2
Watermelnyan can be found and befriended in the Harrisville school after scanning a QR code
Yo-kai Watch Busters
Watermelnyan can rarely be befriended after beating Wobblewok, he can also be obtained through VIP Patrol.
Watermelnyan, as Suikanyan Zhao Yun can be freed from the Crank-a-kai with a Five-Star Coin.
Yo-kai Watch 3
Watermelnyan can be freed from the Crank-a-kai with an Iron Coin. Alternatively if you have both versions linked he can appear in a battle in the Yo-kai world restaurant.