Obariyon (オバリヨン, Obariyon)? is a recurring demon in the series.
The Obariyon is a Japanese "piggyback demon" from local folklore. While a person is walking along a woodland or grassy path, the Obariyon may jump out and attach itself to their back. While it cannot be seen, its weight can be felt by the person, and it becomes harder to walk. The Obariyon cannot be easily removed without the use of magic, but it is said if you can remove it and take it home, it will turn into many valuable gold coins.
Obariyon can be found in Shinjuku. It can teach Flynn the Binding Claw, Patra and Sukunda skills through its Demon Whisper.
Shin Megami Tensei IV Apocalypse
"A Japanese "piggyback monster" that jumps on people's backs as they walk along grassy paths. It is heavy and not easily removed, but if you can take it back home, it will turn into gold coins."
—Shin Megami Tensei IV Apocalypse compendium
Obariyon appears within Kanda-no-yashiro. It can teach the Binding Claw, Patra and Sukunda skills through its Demon Whisper. Obariyon gains a slight benefit from learning physical, Darkness, ailment and healing skills.
Devil Summoner: Soul Hackers
"A Japanese "piggyback monster" that jumps on people's backs as they walk along grassy paths. It is heavy and not easily removed, but the tales say if you can take it back home, it will turn into gold coins."
—Devil Summoner: Soul Hackers 3DS compendium
Devil Survivor 2
"A Japanese "piggyback monster" that jumps on people's back as they walk along grassy paths. It is heavy and not easily remove, but if you can take it back home, it will turn into gold coin."
—Devil Survivor 2 compendium
Obariyon is one of the first demons fought in the game and saves the protagonist, Daichi, and Io from death by causing it to crash into the side of the subway.
In the Animation, it was the first demon Daichi buys from the Devil Auction. He once tried to fight with it, but it quickly fled in fear, leaving Daichi to complain how weak his demons were.
Raidou Kuzunoha Vs. King Abaddon
Appears in the case file Fear of Betobeto: Thought to be Betobeto but when Raidou arrives to investigate it is revealed to be Rumored Obariyon following soldiers from behind in Kasumidai. Much faster than regular Obariyons and having much more HP, they appear in several waves of five and are still weak to wind. After Obariyon's defeat he thanks Raidou for beating them since they couldn't stop once they picked up that speed and just kept going.
Obariyon only appears in Mementos as a Shadow in the Path of Aiyatsbus' Areas 3, 5 and 6. It also appears in a Request as Natsuhiko Nakanohara's Shadow.