Here is the full list of all 30 Boom Boom Bovine achievements.
Blew up Flaming Bag of Poop!
Blew up a Flaming Poop!
Blew up a Cluster Munster!
Blew up a Bomber!
Reached level 20!
Reached level 15!
Blew up a Crunkey!
Blew up a Dropper!
Reached level 10!
Blew up a Sniper!
Blew up a Spitfour!
Blew up a Mutant Bull!
Blew up a Dunkey!
Reached level 5!
Blew up a Chasing Poop!
Blew up a Wandering Machine!
Blew up a Bouncing Poop!
Blew up a blob!
Blew up a Poop Patroller!
Started your first game!
Reached level 25!
Reached level 30!
Reached level 35!
Reached level 40!
Reached level 45!
Reached level 50!
Beat the game!
Completed the game from level one on a single credit!
Blew up a Cluster Splitter!
Blew up a Mutant Snail!