Career
Although Yuji Naka created the original tech demo around which Sonic"s gameplay was based, the character in his prototype was a ball that lacked any specific features. Sonic Team considered numerous potential animal mascots before deciding on Ohshima"s design, with an armadillo or hedgehog being the top choices because their spikes worked well with the concept of rolling into enemies. After leaving Sonic Team, Ohshima formed an independent game company called Artoon.
There he went on to work on such games as Pinobee and Blinx: The Time Sweeper, and in 2004, the sequel to Blinx, Blinx 2: Masters of Time & Space.
In 2010, Artoon was absorbed into AQ Interactive. Early in his career, he was credited under the nickname "Big Island", which is a literal translation of his family name.
Phantasy Star (1987) — Designer
Space Harrier 3-Doctorate (1988) — Art Designer
SpellCaster (1988) — Designer
Phantasy Star II (1989) — Designer
Tommy Lasorda Baseball (1989) — Fielder Designer
Last Battle (1989) — Art Director
Sonic the Hedgehog (1991) — Character Design
Fatal Labyrinth (1991) — Designer
Sonic Eraser (1991) — Special Thanks
Sonic Civil Defense (1993) — Director
SegaSonic the Hedgehog (1993) — Special Thanks
Knuckles" Chaotix (1995) — Original Character Concept
Sonic 3D Blast (1996) — Advisor
Nights into Dreams. (1996) — Director, Nights Designer
Christmas Nights (1996) — Director, Visual Designer
Sonic R (1997) — Graphic Advisor
Sonic Jam (1997) — Supervisor
Burning Rangers (1998) — Director, Character Designer, Graphic Artist
Sonic Adventure (1998) — Story Event Motion Designer, Story Event Coordinator, CG Movie Producer, Opening Movie Editor
Pinobee: Wings of Adventure (2001) — Director
The King of Fighters EX: Neo Blood (2002) — Art Directors
Ghost Vibration (2002) — Game Designer
Blinx: The Time Sweeper (2002) — Director
Blinx 2: Masters of Time and Space (2004) — Director
Yoshi"s Universal Gravitation (2004) — Producer
Yoshi"s Island Doctor of Science (2006) — Senior Producer
Blue Dragon (2006) — Executive Producer
Vampire Rain (2007) — Producer
Lost Odyssey (2007) — Special Thanks
Away: Shuffle Dungeon (2008) — Character Designer
FlingSmash (2010) — Senior Producer
Sonic Generations (2011) — Special Thanks
Yoshi"s New Island (2014) — Development Producer
Terra Battle (2015) — Character Designer
Mario & Sonic at the Rio 2016 Olympic Games (2016) — Supervisor.