Here is the full list of all 12 Celebrity Slot Machine achievements.
Get 3 identical foods in a row on Payline 2
Get 3 identical symbols in a row on any pay line
Get 3 identical foods in a row on Payline 1
Get 3 identical foods in a row on Payline 3
Get 3 WILD in any combination
Win 3 Red or Black games in a row in a single round
Cash out with at least 5,000 coins in a single round
Cash out with at least 50,000 coins in a single round
Get a GREAT WIN ten times
Get a JACKPOT five times
Clock up 100 free spins
Collect 50 bonuses