Here is the full list of all 18 ClusterPuck 99 achievements.
Disrespect an opponent after a Slam Dunk
You patiently waited over 300 days for this update
Complete the ClusterPuck 99 Challenge Mode
Defeat and Unlock 49th Street
Achieve a Gold Medal on the Target Practice Challenge
Achieve a Gold Medal on the Goalie Practice Challenge
Obtain Shotblocker medal 25 times
Obtain Roughhouser medal 25 times
Obtain the Untouchable medal 25 times
Score 3 goals in one match
Complete a 10 minute match on any level
Win a Minefield match without dying
Rack up 10 lifetime Oopsies
Rack up 100 lifetime Goals
Rack up 500 lifetime Deaths
Rack up 1000 lifetime Checks
Rack up 1 hour of Hold Time