Full list of all 27 Totally Reliable Delivery Service achievements worth 1,030 gamerscore.
The base game contains 25 achievements worth 1,000 Gamerscore, and there are 2 DLC packs containing 2 achievements worth 30 Gamerscore.
Unlock the pickup truck
Unlock the helicopter
Visit Keister Island
Unlock the buggy
Complete 10 different deliveries
Visit Gasa Research Facility
Change your clothes
Lose pants in tornado at Happy Clam Resort
Visit Happy Clam Resort
Unlock the mule
Remain airborne for 10 seconds
Complete first delivery
Complete 50 different deliveries
Complete 100 different deliveries
Find the tiny island
Unlock the rocket booster
Pass gas in a biplane
Put treasure chest on sloop
Bring the luchador mask to wrestling ring
Bring the conch shell to top of mountain
Return the satellite to GASA
Bring banana to room 5 at Banana Motel
Bring grill to Dad Statue in Golden Ruins.
Bring foam hand to Booster Club Arena
Complete all of the original achievements.
Have 5 power-ups equipped at the same time.
Find the big secret bear.