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