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