Not an actual guide, since the achievements in this game are all unmissable and self-explanatory.
I just liked the visuals of the achievements, since they allowed for this grid:



Just to make sure:

• Having the same item twice, actually counts as 2 - or how often you got it.
  
• The game consists of 5 floors. The boss at the end of each floor is always the same.
  
• And the achievements for surviving 3 waves refer to: