Here is the full list of all 36 Max: The Curse of Brotherhood achievements worth 1,000 gamerscore.
You escaped the Beast - again!
You drew 200 vines.
You drew 200 branches.
Being afraid of the dark is for sissies anyway.
You destroyed 25 of Mustacho's Evil Eyes. Consider his surveillance network impaired.
You found and assembled 6 pieces of the lost Amulet.
Huh, time really DOES slow down when you're in danger.
Killed a Bomber with his own bomb.
You made 5 critters explode and survived it. Your clothes might need a rinse though.
Up you go.
Time Marches On (Rang a bell.)
You made it safely past the Stone Pillars of Black Rock Canyon.
You drew 200 earth pillars.
You found the first piece of the lost Amulet.
You destroyed the first 5 of Mustacho's Evil Eyes. That'll teach him.
You used the Magic Marker 25 times.
You completed a level without dying.
And just in time for tea! (Reached the old lady in under 5 minutes.)
Recover 12 pieces of the lost Amulet.
Recover all the pieces of the lost Amulet.
Destroy 50 of Mustacho's Evil Eyes.
Destroy all of Mustacho's Evil Eyes.
Draw 200 water streams.
Draw 200 fireballs.
Draw many vines and branches.
Kill two enemies with one shot.
Light 25 of your enemies on fire.
Solve the last puzzle in Sea of Sand by only creating 3 Earth Pillars.
Ride the Spikester for at least 10 seconds.
Say goodbye to an old friend.
Find your brother.
Rescue your brother without killing him.
Save Felix.
Defeat Mustacho without dying.
Don't die in Death By Lava.
Complete Sliding Escape without dying.