Here is the full list of all 20 Vectronom achievements. It takes around 3-4 hours to unlock all of the achievements on Windows.
Play with at least two players.
Play through a level with the lowest tempo using free tempo mode.
Play through a level with the highest tempo using free tempo mode.
Change the tempo after unlocking free tempo mode.
Get all three badges on a level.
Get all three badges on a level in a single run.
Beat the last level.
Beat the last level group.
Die a hundred times.
Beat the first level group.
Finnish all the levels with all three badges.
Get every First Try badge.
Get every Perfect Tempo badge.
Get every Pickups badge.
Play with four players.
Die a thousand times.
Find the hidden debug level.
Find the hidden spot on Autobahn.
Find the hidden spot on Diamond.
Find the hidden spot on Spike Cover.