Here is the full list of all 12 SEGA Vintage Collection: Golden Axe achievements worth 400 gamerscore.
Rode every type of creature in Golden Axe III.
Cleared VS MODE in Golden Axe III.
Got the true ending in Golden Axe III.
Cleared every game.
Knocked an enemy into a hole in every game.
Cleared THE DUEL in Golden Axe II.
Rode every type of creature in Golden Axe II.
Used Tyris's strongest magic in Golden Axe II.
Used Tyris's strongest magic in Golden Axe.
Rode every type of creature in Golden Axe.
Cleared a stage while riding a creature in Golden Axe.
Hit an enemy with magic after knocking him into the air in Golden Axe.