This is going to be the big one. I cannot imagine even a decent fraction of people will be able to input the required patience and skill to be able to reach this achievement, as it means that you have to essentially play the entire game perfectly. Including the *cursed
* animal sections.
To get an N.Sanely Perfect relic, you have to break every box in each level without truly dying. Deaths in the bonus rooms do NOT
count as true deaths, and are allowed.
Only the 38 standard levels will give out these relics. Just like the time trials, the N.Verted levels do not count towards this. Boss battles do not give out these Relics, and are thereby unnecessary.
As you complete these relics, you will also unlock the two following achievements.
And likely many more. I definitely expect this to be most people's last achievement. Good luck.