In Slavic mythology, vodyanoy ("[he] from the water") is a male water spirit. It appears as a naked old man covered in algae and muck with webbed paws instead of hands, a fish's tail and eyes that burn like red-hot coals. When angered, it breaks dams, washes down water mills and drowns people and animals.
"A water creature of Slavic lore. He drowns humans and sometimes makes them his slaves. With his Rusalka wife, he lives at the bottom of lakes. He catches and eats people who venture near the water. He appears as a merman or frogman, but is said to be able to change his shape to human form."
—Shin Megami Tensei: Strange Journey compendium
Shin Megami Tensei IV[]
"A water creature of Slavic lore. He drowns humans and sometimes makes them his slaves. With his Rusalka wife, he lives at the bottom of lakes. He catches and eats people who venture near the water. He appears as a merman or frogman, but is said to be able to change his shape to human."
—Shin Megami Tensei IV profile
Vodyanik can be found in the 4th and 5th stratums of Naraku. Flynn must have the Demolingual App in order to obtain Vodyanik through Scouting him. He can teach Flynn the Mazio and Bouncing Claw skills through his Demon Whisper.
Shin Megami Tensei IV Apocalypse[]
"A water creature of Slavic lore. He drowns humans and sometimes makes them his slaves. With his Rusalka wife, he lives at the bottom of lakes. He catches and eats people who venture near the water. He appears as a merman or frogman, but is said to be able to change his shape to human."
—Shin Megami Tensei IV Apocalypse compendium
Vodyanik appears within Ueno in the Shinobazu Pond area. It bestows Nanashi with the Zio and Bouncing Claw skills during Demon Whisper.
DemiKids: Light/Dark Version[]
"Water-demon that lurks in the swamps and attacks anybody who foolishly approaches it."
