Here is the full list of all 14 Battle Bruise achievements.
Cleared Car Defense Mode
Cleared fog car levels
Cleared a stage without using money
Cleared lava car levels
Cleared mud levels
Cleared Campaign Mode
Cleared lava stages on Campaign
Killed 6000 enemies
Cleared rain stages on Campaign
You have a certain taste for hitting dirt, hum?
Killed 3000 enemies
Piled a considerably high montain
Cleared fog stages on Campaign
Killed 1000 enemies