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Griffin is a shoot-'em-up game developed by Telenet Japan's "Renovation Game" division (which is not the same as Renovation Products) and published by Telenet Japan's RIOT division for the Sega Game Gear. It was only released in Japan.
Sega Game Gear · Aug 26, 1991
Japan · Exact date · IGDB
Catalog sources
11 achievements available.

Complete the Stage 1.
LockedSteam

Reach a score of 20,000.
LockedSteam

Reach a score of 30,000.
LockedSteam

Complete the Stage 2.
LockedSteam

Complete the Stage 3.
LockedSteam

Defeat the final boss.
LockedSteam

Complete the Stage 1 for the second time in a row.
LockedSteam

Complete the Stage 2 for the second time in a row.
LockedSteam

Defeat the final boss for the second time in a row.
LockedSteam

Reach a score of 5,000.
LockedSteam

Reach a score of 10,000.
LockedSteam
Community notes

Main game