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