Here is the full list of all 28 Ben 10: Power Trip achievements.
Find all the Luck Upgrades
Save all the citizens from monsters.
Find all the Power Upgrades
Complete everything in Grashugel Forest
Find all the Toughness Upgrades
Complete everything in Strudelbek City
Collect all the Records
Find all the Trinkets
Destroy All Decibel Concerts
Destroy 10 Decibel Concerts
Complete all the Scooter Challenges.
Complete everything in Mt. Eisburg
Destroy 5 Decibel Concerts
Defeat Hex and Save Strudelbek
Find the Omni-Guard
Defeat the Mountain Power Spring
Unlock Diamondhead
Unlock Rath
Defeat the City Power Spring
Complete your first Side Mission
Unlock Shockrock
Unlock XLR8
Fast travel using the Rust Bucket
Defeat the Forest Power Spring
Unlock Four Arms
Defeat your first Void Ruin
Choose your first upgrade
Unlock Heatblast