Here is the full list of all 27 Slam Bolt Scrappers achievements.
Beat all tutorial levels
Beat the Campaign
Beat all the hidden campaign levels
Beat all campaign levels on expert difficulty
Beat Mountain Top 1
Beat Downtown 4: The Skyscraper
Beat Mountain Top 1 without taking any damage
Beat Skyscraper without dying
Get past the enemy hoard in Armageddon without dying
Play 5 Battle Mode matches
Play 50 Battle Mode Matches
Play 100 Battle Mode Matches
Defeat a CP opponent in 1v1 battle before they can drop any blocks.
Win a 1v2 battle against 2 Hard CPs
Knock out 20 opponents without dying
Win a match with only ping pong weapons
Build a 10x10 weapon (on any level other than Mega Blocks)
Win with only a 2x2 turret left in your tower
Steal your way to victory
Steal a weapon of size 8x8 or bigger
Beat 1000 grubs
Beat 100 demon cavalry
Win a level without killing any baddies
Win a match using beverage mode controls
Watch the entire credits. You're a true fan!
Play a Battle Mode match
Play 20 Battle Mode matches