Here is the full list of all 17 Bit Blaster XL achievements. It takes around 2-3 hours to unlock all of the achievements on Windows.
Earn 25,000 points in a single round
Earn 15,000 points in a single round
Unlock Bit Blaster V5
Earn 10,000 points in a single round
Unlock Bit Blaster V4
Unlock Bit Blaster V3
Unlock Bit Blaster V2
Earn 5,000 points in a single round
Earn 2,500 points in a single round
Earn 1,000 points in a single round
Earn 50,000 points in a single round
Unlock Bit Blaster V6
Unlock Bit Blaster V7
Earn 75,000 points in a single round
Earn a total of 500,000 points over all rounds
Earn a total of 1,500,000 points over all rounds
Unlock Bit Blaster V8