Here is the full list of all 36 Max: The Curse of Brotherhood achievements worth 1,000 gamerscore.
You escaped the Beast without dying!
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 completed a level without dying.
You defeated Mustacho without dying even once!
You drew 200 fireballs.
You defeated Mustacho and saved your brother!
You took care of that pesky Beast once and for all!
You lit 25 enemies on fire. Oh the things one does for brotherly love.
You found your kid brother!
It's all in the fingers and fiery balls of death.
You drew 200 water streams.
Killed a Bomber with his own bomb.
You destroyed 50 of Mustacho's Evil Eyes. His control is diminishing!
Time Marches On (Rang a bell.)
One Sea of Sand, 2 earth pillars, 3 drawings - piece of cake.
You found and assembled 12 pieces of the lost Amulet.
You made the world a little greener.
You escaped the Beast - again!
You drew 200 vines.
You drew 200 earth pillars.
Being afraid of the dark is for sissies anyway.
You destroyed 25 of Mustacho's Evil Eyes. Consider his surveillance network impaired.
You drew 200 branches.
You found and assembled 6 pieces of the lost Amulet.
Huh, time really DOES slow down when you're in danger.
And just in time for tea! (Reached the old lady in under 5 minutes.)
Up you go.
You made 5 critters explode and survived it. Your clothes might need a rinse though.
You made it safely past the Stone Pillars of Black Rock Canyon.
You destroyed the first 5 of Mustacho's Evil Eyes. That'll teach him.
You tamed the Spikester! ...Lucky you.
You used the Magic Marker 25 times.
You found the first piece of the lost Amulet.