The first Oni alien attacking a group of hunters and Reika
The hunt for the Oni Aliens was a major turning point in the story. For the first time in the series, the target aliens were visible to normal humans. As the hunt neared its conclusion, even the Gantz hunters themselves became visible. Also, the timer displayed by Gantz simply turned off in the middle of the mission, effectively giving the hunters unlimited time to complete it.
Like the Chibi aliens before them, the Oni aliens appeared to be completely sentient and intelligent; they acted and dressed like humans, used cell phones, and even enjoying human entertainment, suggesting that they lived among humans in human guise rather than hiding as the other previous aliens had. They were also quite aware of Hunters' existence and the weaknesses of the suits.
It was also the first time the aliens were waiting for the arrival of the Gantz players, and had gathered in enormous numbers in order to finish the Hunters once and for all. The average Oni alien was capable of assuming human form. Their true forms were humanoid but with long tentacles in place of arms, sword-like claws, elongated necks, and an acid spit that easily penetrated the Gantz suits' defenses. They also had short horns that made them not unlike the traditional japanese folklore depictions of Oni.
Hunters participating
- Kurono Kei
- Izumi Shion
- Suzuki Yoshikazu
- Sakata Kenzo
- Inaba Kouki
- Reika
- Kaze Daizaemon
- Hoi Hoi
- Takeshi
- Sakurai Hiroto
- Rapist 1
- Rapist 2
- Rapist 3
- Rapist 4
- Ayaka Uranaka
- New Guy 1
- New Guy 2
- New Guy 3
- Nagashima(New Guy 4)
Survivors
- Kurono Kei
- Izumi Shion
- Suzuki Yoshikazu
- Sakata Kenzo
- Inaba Kouki
- Reika
- Kaze Daizaemon
- Hoi Hoi
- Takeshi
- Sakurai Hiroto