wow really like the new achievement (kinda easy though)
I Really love the pebble specific achievements. maybe you could add more different character specific achievements.
ideas:
Scoot: Eternal legacy: reach water with gramps, then reach the water with scoot the next run (idk this feels a little too restore cell rng?)
gramps: collect a total number of x ores/gems
fern: overheal by 75 stamina (i actually did this before)
griddle: reach water using sanguine signet? (feels to similar to fashion statement idk)
mistral: reach water without using a drill or reach water while mining more than 866 cells (takes advantage of the sideways mining advantage of mistral)
caelo: reach 13 power (pretty sure this is the max power rn correct me if im wrong)
reeler: win the mini slot x times in a run
nix: gather a total of x shield stacks
and you already have pebble