Here is the full list of all 13 Frozen Cortex achievements.
Pass the ball for the first time
Win an online match using only running plays
Win your first Online match
Get over 8 blocks in a match
Get more than 7 points on a play
Win your first Knockout match
Get 11 or more points on a play
Concede more than 28 points in an online match
Bet on yourself to lose
Get over $5000 in any league mode
Win a League without ever buying a player
Win a League with a team called Emergency Turbot
Defeat Bin in an online match