PC Engine by a country mile. First system to use CDs. Runs a ton of NES era Shmups at perfect arcade quality that blows the NES versions out of the water. Got a ram expansion card late in its life cycle so it still had cutting edge games like Saphire in 1995.
Jackie Chan's Action Kung Fu
Air Zonk
Alein Crush
Blazing Lasers
Bloody Wolf
Bonk's Adventure
Bonk 2
Bonk 3
Dragon Spirit
Ninja Spirit
Samurai Ghost
Silent Debuggers
Tiger Road
Cyber Core
Raiden
Dungeon Explorer
Shockman
Neutopia
Neutopia II
Prince of Persia
Cosmic Fantasy 2
YS Book I and II (Chrono Trigger levels of good here.)
Dungeon Explorer II
Salamander
R-Type
R-Type II
Violent Soldier
1943 Kai
Image Fight
Soldier Blade
Super Star Soldier
Metal Stoker
Heavy Unit
Cotton
Super Air Zonk
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Avenger
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Dracula X
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Dragonslayer Legend of Heroes
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Exile
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Fantasy Soldier 2
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FX Unit Yuki
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Gate of Thunde
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Image Fight II
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Kaiso Chojin 3 Shubibinman 3
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Last Alert
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Faucette Armo
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Pop n' Magi
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Seirei Shsnshi Spriggan
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Star Parioder
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Super Raiden
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Winds of Thunder
