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