Here is the full list of all 19 GoNNER achievements.
Didn't have to skip death.
There's nothing there! No easter egg, no extra item, no nothing. Just a dumb achievement.
You jumped on 20 enemies in a row
I'm a serious adult person and I think this kind of humor is childish and should be banned.
Did you just run out of colors?
I believe in you, get back up.
You became Death.
you found sally
You pushed that big piece of trash off your lawn. Good on you.
You completed Death world! Woah!
These combos are just getting ridiculous...
You completed Shooty world! Smooth!
You hit the glyph cap!
You completed the Robot world. Impressive.
You completed the Cave world. Good job.
It's not even ASCII, how can it even be called Roguelike???
You got a combo of 15!
You picked up a glyph!
You got a combo of 5