Here is the full list of all 13 Crawlco Block Knockers achievements.
You defeated a boss without dying even once!
You've cleared 2500 blocks! Promotions! Promotions!
You've cleared 1200 blocks!
You got a Super Perfect Clear! Nice!
You think you're so smart don't you
You defeated a boss!
You got all perfects for one girl!
You got your first perfect clear!
You've cleared 400 blocks!
You got all Super Perfects for one girl!
Perfect rank on every stage! Well done.
Super Perfect on every stage, you maniac!
You cleared all stages and defeated the end boss!