Here is the full list of all 25 Legendary Eleven: Epic Football achievements.
Score 500 goals
Win 100 games
Unlock all 32 stickers in the game
Finish 100 games
Perform 100 Super Shots
Score 20 goals with a bicycle kick
Unlock 24 stickers
Win 25 games
Win World Cup
Win the World Cup with USSR
Do 100 substitutions
Win Europe Cup
Score 1 own goal
Do 25 successful dribbles
Win a game in the last minute
Unlock 16 stickers
Win your first game
Win Africa Cup
Win Asia Cup
Win America Cup
Score 50 goals
Do 3 substitutions
Score 1 penalty goal
Unlock 10 stickers
Get 1 Player Expelled