Here is the full list of all 12 Rescue Bear Operation achievements.
Earn 2500 Chips
Play 100 Games
Play 50 Games
Earn 1000 Chips
Earn 500 Chips
Play 10 games
Earn 250 Chips
Earn 100 chips
Play 250 Games
Play 1000 Games
Play 2500 Games
Earn 5000 Chips