Wikipedia: 1988 in video gaming - MobyGames: Browse 1988 - The International Arcade Museum: 1988
Altered Beast
System 16 1988@3190
DragonNinja
Arcade 1988@449
Guerrilla War
NES 1988@1916
Menace
Amiga 1988@1685
Ninja Spirit
PC Engine 1988@1742
Operation Thunderbolt
Arcade 1988@1466
P.O.W.: Prisoners of War
Arcade 1988@3443
R-Type I
PC Engine 1988@2573
RoboCop
Arcade 1988@1144
Super C
NES 1988@1019
The Final Round
Arcade 1988@3948
1943 Kai (Arcade)
Alien Crush (PC Engine)
Altered Beast (System 16)
Arkanoid II (NES)
Backlash (Amiga)
Banzai Run (Pinball)
Bubble Bobble (NES)
Capone (Amiga)
Cyclone (Pinball)
Dragon Spirit (Sharp X68000)
Forgotten Worlds (CP System)
Formation Armed F (Arcade)
Hostages (Amiga)
IK+ (Amiga)
Into The Eagle's Nest (Amiga)
IO (Commodore 64)
Jackal (NES)
Menace (Amiga)
Ninja Spirit (PC Engine)
Ninja Spirit (Irem M72 Family)
P.O.W.: Prisoners of War (Arcade)
Pac-Mania (Amiga)
Parodius (MSX)
R-Type (Commodore 64)
R-Type (SEGA Master System)
R-Type I (PC Engine)
Rambo III (SEGA Master System)
Rescue Mission (SEGA Master System)
Rollerball (NES)
Silkworm (Arcade)
Splatterhouse (Namco System 1)
Tetris (NES)
Tetris (Arcade)
The Final Round (Arcade)
The Legendary Axe (PC Engine)
Truxton (Toaplan Version 1)
Virus (Amiga)