Here is the full list of all 13 80s Volleyball achievements.
Finish tutorial mode
Finish a match
Go to Trainning mode
Win South America Cup in Tournament or Season mode
Win America Cup in Tournament or Season mode
Win Africa Cup in Tournament or Season mode
Win Asia Cup in Tournament or Season mode
Win Europe Cup in Tournament or Season mode
Win International Tournament in Tournament or Season mode
Win International Championship in Tournament or Season mode
Win Gold Medal in Tournament or Season mode
Finish Season mode
Win all tournmanets in Season Mode