Here is the full list of all 28 Joggernauts achievements.
Find the Glørpin De-flooper
Unlock Doris Al Finn
Unlock Flug Splorshington
Beat level at 2x speed
Beat level with only 1 heart
Beat level in default ZACHMODE
Beat a level in single player
Beat level at 1/2 speed
Unlock CommanderVideo
Beat a level in 2-player
Survive the tutorial
Beat a level in 3-player
Beat a level in 4-player
Find the Gofastinator
Find the Dingleorb
Complete 7 bonus challenges
Complete 14 bonus challenges
Complete ALL bonus challenges
Recover 14 gold trophies
Recover 28 gold trophies
Recover ALL gold trophies
Recover 14 glowtonium trophies
Recover 28 glowtonium trophies
Recover ALL glowtonium trophies
Unlock Gasnarb
Unlock Georgie La Forgery
Beat level in default Risky mode
Unlock Blonky Fartlek