Here is the full list of all 28 Overpass achievements.
Clear 100 World Tracks
Collect all Dash Buddies
Complete an Expedition trip
Complete an Expedition trip without breaking a combo
Perfect an Expedition trip
Perfect every Track
All medals in every Track
Lit every Track
All medals on a Track using Memory lens
Clear a Track using Memory lens
Collect a Dash Buddy
Unlock all Custom Items
Get an Unbroken medal on a Track with 0 Perfects
Get all medals on a Track with music and sfx set to 0
Complete a Discovery trip using every detour
Find all Detours
Complete Discovery Mode using the most number of Tracks
Create & share a World Track
Clear every Track
Complete Discovery Mode using the fewest number of Tracks
Clear a World Track
Complete a Discovery trip
Perfect a Track
All medals in a Track
Find a Detour
Lit a Track
Clear a Track
Unlock a Custom Item