Impressive YM2203/OPN (ARC, PC-88/98) Music
Arcade games sometimes use two of the same chip (marked with "2x"), and often an additional chip for sampled percussion. Click the image for a link to the wikipedia page.
The OPN chip has the same "channel 3 special mode" feature that the MD's YM2612/OPN2 chip has, letting one control the individual operators of an instrument to play more than one individual note or to achieve an echo effect on a single channel (two operators play a note pattern and the other two play the same thing with some delay and at a lower volume for echo).
Youtube Playlist (note that not all tracks/OSTs are on YT yet)
Grounseed (PC-98, OPN)
Chou-Jikuu Yousai: Macross/Super Spacefortress Macross (ARC, 2x OPN w/ OkiM6295), Alternate
Space Harrier (ARC, OPN w/ SegaPCM)
Thunder Dragon 2/Big Bang: Power Shooting (ARC, w/ 2x OKIM6295)
Xenon: Mugen no Shitai (PC-98)
Ys: VO (OPN), Ys II (OPN), Ys III: WfY (OPN)
Princess Maker 2 (PC-98)
Dragon Slayer: TLoH, Dragon Slayer: TLoH 2
Star Trader (PC-88)
Power Instinct (w/ OKIM6295), Power Instinct 2 (w/ OKIM6295), Gogetsuji Legends
Desire: Spiral of Perversion (PC-98, OPN)
Puyo Puyo (OPN)
Digan no Maseki (PC-88)
Marionette Mind (PC-98)
Rookies (PC-98)
Mahou Shoujo Fancy Coco (PC-98)
Shizuku (PC-98, OPN)
Night Slave (PC-98, OPN)
Air Buster/Aero Blasters (ARC)
Rapid Hero/Arcadia (ARC)
Death Knights of Krynn (PC-98)
Queen's Library (PC-98)
Dracula Hakushaku (PC-98, OPN)
Mime (PC-98, OPN)
Hotdog Storm (ARC)
Herzog (PC-88)
Madou Monogatari 1-2-3 (PC-98, OPN)
The Scheme (OPN), The Scheme (Music Mode)
Champions of Krynn (PC-98)
Death Bringer (PC-98)
EVE burst error/EVE: Burst Error (PC-98, OPN)
Princess Maker (PC-98)
Star Cruiser II: The Odyssey Project (PC-98)
Power Slave (PC-98)
Emerald Dragon (PC-88, OPN)
Marion (PC-98, OPN)
Eye of the Beholder (PC-98)
Jinmon Yuugi (PC-98, OPN)
X-Girl (PC-98)
Rude Breaker (PC-98)
Raiga: Strato Fighter (ARC, 2x)
Rance 4.1/4.2 (OPN)
Doukyusei 2 (PC-98)
Angelus: AnF (OPN)
Miho (PC-98)
Sotsugyou Shashin/Miki (PC-98, OPN)
Sorcerian (PC-88)(added reverb)
Eiyuu Densetsu/Legend of Heroes III: WW (OPN) & Legend of Heroes IV (OPN)
Space Hulk (PC-98, OPN)
Rall III Kakusei-hen (PC-98, OPN)
Dragons of Flame (PC-98)
Paradise Call (PC-98, OPN)
Meikyuu Gakuensai: Kyuukousha no Nazo (PC-98, OPN)
Star Cruiser (PC-88, OPN)
Possessioner (PC-98, OPN)
Rance IV (OPN)
Briganty: RoD (OPN)
Illumina! (PC-88)
Rune Worth (OPN)
Akiko (PC-98, OPN)
Lord Monarch (PC-98, OPN)
Flame Zapper Kotsujin (PC-98, OPN)
Romancia (OPN)
Akiko: Gold (PC-98, OPN)
Maldita Castilla (PC, 2x)
Popful Mail (OPN)
Magical Block Carat (PC-98)
Cyber Block Metal Orange (OPN)
Goice (PC-98, OPN)
Sly Spy (ARC, w/ YM3812)
Melty Lancer (PC-98)
Kimi Dake ni Ai o... (PC-98)
Eiyuu Shigan: Gal Act Heroism (PC-98, OPN)
Nectaris (OPN)
Silent Möbius (PC-98, OPN)
Dream Theater (PC-98)
DJ Boy (ARC)
Hang-On (ARC, w/ SegaPCM)
Omega Fighter (ARC, 2x)
Space Harrier (PC-88, OPN)
Tecmo Knight/Wild Fang (ARC, 2x OPN)
Desire: Haitoku no Rasen (PC.98, OPN)
Kagayake! Kirakira Senshi Risky Jewel/Kagake Kira Kira (PC-98, OPN)
Ojousama Club
Quarth (PC-98)
Cosmic Psycho (PC-88)
Totsugeki! Mix (PC-98, OPN w/ drum samples)
Heart Heat Girls (PC-98, OPN)
Filsnown: Hikari to Toki (PC-98, OPN)
Corpse Party 2: Satsuki's Heart (PC-98, Unreleased)
Hacha Mecha Fighter (ARC, OPN)
Lam-Mal (PC-98, OPN)
Kizuato (PC-98, OPN)
Marine Philt (PC-98, OPN)
If (PC-98, OPN)
Kanako (PC-98, OPN)
Acrobat Mission (ARC, OPN w/ 2x OkiM6295)
Virtua Call (PC-98, OPN)
Dark Seraphim (PC-98, OPN)
Adventure Tsukuru II (PC-98, OPN)
Zavas (PC-98, OPN)
Fall (PC-98, OPN)
Misty Blue (PC-98, OPN)
Madou Monogatari: ARS (PC-98, OPN), Alternate
Prince of Persia (PC-98, OPN),
Hokkaido Rensa Satsujin: Ohotsk ni Kiyu (PC-98, OPN)(remaster)
Fushigi no Umi no Nadia (PC-98, OPN)
Elle (PC-98, OPN)
Rusty (PC-98, OPN)
Marginal Points (PC-98, OPN)
Best of the rest
The OPN chip has the same "channel 3 special mode" feature that the MD's YM2612/OPN2 chip has, letting one control the individual operators of an instrument to play more than one individual note or to achieve an echo effect on a single channel (two operators play a note pattern and the other two play the same thing with some delay and at a lower volume for echo).
Youtube Playlist (note that not all tracks/OSTs are on YT yet)
Grounseed (PC-98, OPN)
Chou-Jikuu Yousai: Macross/Super Spacefortress Macross (ARC, 2x OPN w/ OkiM6295), Alternate
Space Harrier (ARC, OPN w/ SegaPCM)
Thunder Dragon 2/Big Bang: Power Shooting (ARC, w/ 2x OKIM6295)
Xenon: Mugen no Shitai (PC-98)
Ys: VO (OPN), Ys II (OPN), Ys III: WfY (OPN)
Princess Maker 2 (PC-98)
Dragon Slayer: TLoH, Dragon Slayer: TLoH 2
Star Trader (PC-88)
Power Instinct (w/ OKIM6295), Power Instinct 2 (w/ OKIM6295), Gogetsuji Legends
Desire: Spiral of Perversion (PC-98, OPN)
Puyo Puyo (OPN)
Digan no Maseki (PC-88)
Marionette Mind (PC-98)
Rookies (PC-98)
Mahou Shoujo Fancy Coco (PC-98)
Shizuku (PC-98, OPN)
Night Slave (PC-98, OPN)
Air Buster/Aero Blasters (ARC)
Rapid Hero/Arcadia (ARC)
Death Knights of Krynn (PC-98)
Queen's Library (PC-98)
Dracula Hakushaku (PC-98, OPN)
Mime (PC-98, OPN)
Hotdog Storm (ARC)
Herzog (PC-88)
Madou Monogatari 1-2-3 (PC-98, OPN)
The Scheme (OPN), The Scheme (Music Mode)
Champions of Krynn (PC-98)
Death Bringer (PC-98)
EVE burst error/EVE: Burst Error (PC-98, OPN)
Princess Maker (PC-98)
Star Cruiser II: The Odyssey Project (PC-98)
Power Slave (PC-98)
Emerald Dragon (PC-88, OPN)
Marion (PC-98, OPN)
Eye of the Beholder (PC-98)
Jinmon Yuugi (PC-98, OPN)
X-Girl (PC-98)
Rude Breaker (PC-98)
Raiga: Strato Fighter (ARC, 2x)
Rance 4.1/4.2 (OPN)
Doukyusei 2 (PC-98)
Angelus: AnF (OPN)
Miho (PC-98)
Sotsugyou Shashin/Miki (PC-98, OPN)
Sorcerian (PC-88)(added reverb)
Eiyuu Densetsu/Legend of Heroes III: WW (OPN) & Legend of Heroes IV (OPN)
Space Hulk (PC-98, OPN)
Rall III Kakusei-hen (PC-98, OPN)
Dragons of Flame (PC-98)
Paradise Call (PC-98, OPN)
Meikyuu Gakuensai: Kyuukousha no Nazo (PC-98, OPN)
Star Cruiser (PC-88, OPN)
Possessioner (PC-98, OPN)
Rance IV (OPN)
Briganty: RoD (OPN)
Illumina! (PC-88)
Rune Worth (OPN)
Akiko (PC-98, OPN)
Lord Monarch (PC-98, OPN)
Flame Zapper Kotsujin (PC-98, OPN)
Romancia (OPN)
Akiko: Gold (PC-98, OPN)
Maldita Castilla (PC, 2x)
Popful Mail (OPN)
Magical Block Carat (PC-98)
Cyber Block Metal Orange (OPN)
Goice (PC-98, OPN)
Sly Spy (ARC, w/ YM3812)
Melty Lancer (PC-98)
Kimi Dake ni Ai o... (PC-98)
Eiyuu Shigan: Gal Act Heroism (PC-98, OPN)
Nectaris (OPN)
Silent Möbius (PC-98, OPN)
Dream Theater (PC-98)
DJ Boy (ARC)
Hang-On (ARC, w/ SegaPCM)
Omega Fighter (ARC, 2x)
Space Harrier (PC-88, OPN)
Tecmo Knight/Wild Fang (ARC, 2x OPN)
Desire: Haitoku no Rasen (PC.98, OPN)
Kagayake! Kirakira Senshi Risky Jewel/Kagake Kira Kira (PC-98, OPN)
Ojousama Club
Quarth (PC-98)
Cosmic Psycho (PC-88)
Totsugeki! Mix (PC-98, OPN w/ drum samples)
Heart Heat Girls (PC-98, OPN)
Filsnown: Hikari to Toki (PC-98, OPN)
Corpse Party 2: Satsuki's Heart (PC-98, Unreleased)
Hacha Mecha Fighter (ARC, OPN)
Lam-Mal (PC-98, OPN)
Kizuato (PC-98, OPN)
Marine Philt (PC-98, OPN)
If (PC-98, OPN)
Kanako (PC-98, OPN)
Acrobat Mission (ARC, OPN w/ 2x OkiM6295)
Virtua Call (PC-98, OPN)
Dark Seraphim (PC-98, OPN)
Adventure Tsukuru II (PC-98, OPN)
Zavas (PC-98, OPN)
Fall (PC-98, OPN)
Misty Blue (PC-98, OPN)
Madou Monogatari: ARS (PC-98, OPN), Alternate
Prince of Persia (PC-98, OPN),
Hokkaido Rensa Satsujin: Ohotsk ni Kiyu (PC-98, OPN)(remaster)
Fushigi no Umi no Nadia (PC-98, OPN)
Elle (PC-98, OPN)
Rusty (PC-98, OPN)
Marginal Points (PC-98, OPN)
Best of the rest