Here is the full list of all 28 Kselebox achievements.
Spawn 10 items
Kill 15 chicken
Complete 10 missions
Spawn first item
Spawn 100 items
Spawn 500 items
Spawn 1000 items
Spawn 5000 items
Kill 100 chicken
Kill 500 chicken
Kill 1000 chicken
Kill 5000 chicken
Kill 15 pig
Kill 100 pig
Kill 500 pig
Kill 1000 pig
Kill 5000 pig
Complete 20 missions
Complete 30 missions
Complete 40 missions
Use Black hole grenade
Find Strange star
Use Dragolite
Cure entity from sickness 4 times
Complete 5 Levels (A to B)
Complete 10 Levels (A to B)
Complete 15 Levels (A to B)