Osamu MUTO / 武藤修

Games
Other video game related works
To be confirmed
Confirmed as not having been made by the artist
Gallery Part 1
Gallery Part 2

Twitter
Website 1
Website 2
Website 3

Games (in alphabetical order)

Basketball Nightmare (Master System – 1989)
Cover art (Source: confirmed by the artist on Twitter)

DJ Boy / DJボーイ (Mega Drive – 1990)
Cover art for the Japanese and European versions, back cover and manual illustrations for the Japanese version (Source: signature found on the cover of the Japanese manual)

Dynamite Headdy / ダイナマイトヘッディー (Mega Drive – 1994)
Cover art and back cover illustration for the Japanese version
(Source: mentioned by the artist on Twitter, back cover)

Ecco The Dolphin / エコー・ザ・ドルフィン (Mega Drive – 1992, Game Gear – 1994)
Cover art for the Japanese version (Sources: Signature found on the original artwork)

Ecco The Dolphin II / エコー・ザ・ドルフィン２, AKA Ecco: The Tides of Time (Mega Drive – 1994)
Cover art for the Japanese version (Sources: mentioned by the artist on Twitter: 1, 2)

Forgotten Worlds (Master System – 1991)
Cover art (Source: mentioned by the artist on Twitter)

Laser Ghost (Master System – 1991)
Cover art (Source: signature found on an alternate cover of the European version)

Pepenga Pengo / ぺぺんがペンゴ (Mega Drive – 1995)
Cover art (Source: mentioned by the artist on Twitter)

Pro Yakyū GG League ’94 / プロ野球ＧＧリーグ’９４ (Game Gear – 1994)
Cover art (Source: mentioned by the artist on Twitter)

Puzzle & Action: Tant-R / Puzzle & Action: タントアール (Mega Drive, Game Gear – 1994)
Cover art (Source: mentioned by the artist on Twitter: 1, 2)

Shin Souseiki Ragnacenty / 新創世紀ラグナセンティ, AKA Crusader of Centy / Soleil (Mega Drive – 1994)
Cover art for the Japanese version (Source: mentioned by the artist on Twitter: 1, 2)

Sonic the Hedgehog 2 / ソニック・ザ・ヘッジホッグ2 (1992)
Promotional illustration for the Japanese version (Source: mentioned by the artist on Twitter)
.Note: also used in South Korea as well as for the cover of the Sonic the Hedgehog Book

Space Harrier / スペースハリアー (Super 32X – 1994)
Cover art for the Japanese version (Source: mentioned by the artist on Twitter)

Tails’ Skypatrol / テイルスのスカイパトロール (Game Gear – 1995)
Cover art (Source: confirmed by the artist in a private discussion)

Tatakae! Pro Yakyū Twin League / 闘え！プロ野球ツインリーグ (Game Gear – 1995)
Cover art (Source: mentioned by the artist on Twitter)

Wonder Boy III: Monster Lair / ワンダーボーイIII モンスター・レア (Mega Drive – 1990)
Cover art (Source: Sega TV Game Genga Gallery)

To be confirmed

Osamu Muto recognized his style in the following 5 cover illustrations, but couldn’t remember the illustrations themselves.

Alex Kidd in Shinobi World (Master System – 1990)
Cover art (Source: via Twitter)

Ecco The Dolphin CD / エコー・ザ・ドルフィンCD (Mega-CD – 1995)
Cover art for the Japanese version (Source: via Twitter)

Psycho Fox (Master System – 1989)
Cover art (Source: via Twitter)

Summer Games (Master System – 1990)
Cover art (Source: via Twitter)

World Games (Master System – 1990)
Cover art (Source: via Twitter)

Confirmed as not having been made by the artist

Puzzle & Action: Ichidant-R / Puzzle & Action: イチダントアール (Mega Drive – 1994)
Cover art (Source: via Twitter)

Scramble Spirits (Master System – 1989)
Cover art (Source: via Twitter)

Sonic Drift 2 / ソニックドリフト2 (Game Gear – 1995)
Cover art (Source: via Twitter)

Space Harrier 3D / スペースハリアー3D (Mark III – 1988)
Cover art for the Japanese and the European versions (Source: via Twitter)

Games
Other video game related works
To be confirmed
Confirmed as not having been made by the artist
Gallery Part 1
Gallery Part 2