Here is the full list of all 27 Max: The Curse of Brotherhood achievements.
And just in time for tea! (Reached the old lady in under 5 minutes)
Time Marches On. (Rang a bell)
You defeated Mustacho without dying even once!
You didn't die in Death By Lava.
You stole back your kid brother like a boss!
No Evil is safe from you and your Grabby Hands.
You found and assembled the entire Amulet for the Old Lady!
You defeated Mustacho and saved your brother!
It's all in the fingers and fiery balls of death.
You lit 15 enemies on fire. Oh the things One does for brotherly love.
Can't Touch This
You escaped the Beast without dying!
You found and assembled 12 pieces of the lost Amulet.
You destroyed 50 of Mustacho's Evil Eyes. His control is diminishing!
You drew 200 water streams.
You drew 200 vines.
You drew 200 branches.
You found and assembled 6 pieces of the lost Amulet.
One Sea of Sand, 2 Earth Pillars, 3 drawings - piece of cake.
You destroyed 25 of Mustacho's Evil Eyes. Consider his surveillance network impaired.
What goes around, comes around. Right in your face.
Guts and Glory
Up you go.
You found the first piece of the lost Amulet.
You tamed the Spikester! ...Lucky you.
You destroyed 5 of Mustacho's Evil Eyes. That'll teach him.
You used the magic marker 25 times.