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