Here is the full list of all 29 Phineas and Ferb: Quest for Cool Stuff achievements worth 1,000 gamerscore.
Step inside the temple and find your first epic treasure.
Dwell in the temple’s caverns and find the second epic treasure.
Plunge into the temple’s lake and find the third epic treasure.
Fly off to the moon and find the fourth epic treasure.
Destroy Dr Doofenshmirtz's Attract-Cool-Stuff-Inator.
Self-destruct engaged, once again
Find your very first treasure chest.
Find 20 treasures of any kind.
Find 40 treasures of any kind.
Find every treasure.
Find the Giant Floating Baby Head treasure.
Find Nosey's baby tooth.
Find the rare Ducky Momo collectible plate.
Find the Mars Queen Crown.
Find the Marvelous Super Agent P Comic.
Find and free your first Lawn Gnome.
Find and free all Lawn Gnomes.
Upgrade the Museum to "Museum of Super Cool"
Upgrade the Museum to "Museum of Ultra Cool"
Upgrade the Museum to "Coolest Museum Ever"
Complete all of Isabella's requests.
Complete Baljeet's requests and improve his grade.
Complete all of Buford's challenges.
Equip the polka dot pink color.
Equip the Pizza Wheel.
Equip the Bouncy Sound Module.
Equip every customization piece.
Fully upgrade the All-Terrain Transformatron.
Complete the game at 101%.