Here is the full list of all 44 Micro Machines World Series achievements.
Push 5 players into the lawn mower in a single battle
Destroy 5 opponents while you're riding on a drone
Use Chief A. Blaze's Foam Blast to put out flames on 3 teammates at once
Feed a player to the hippos
Destroy an opponent by pushing them into a laser gate
Push all 3 opponents off the track or into hazards in one round during an elimination skirmish
Use one of Jack Hammer's boosted sentry turrets to destroy 3 opponents
Use Yu Saiko to destroy 3 opponents in a single Black Hole
Win a control game without letting the opposition get a single point
Use Agent Atom to Flashbang 3 opponents within 3 seconds of leaving Stealth
Prestige for the first time
Take a counting down bomb from your base and explode the opponents' base without dropping it
Reach level 40
Collect all items for a single car
As Hank N. Stein, destroy 3 flag or bomb carriers that have been slowed by your Earthquake
Reach level 30
Destroy an opponent within 1 second of them picking up your flag
Win a race without being destroyed on 10 different tracks
Exit a teleporter and destroy an opponent 5 times
Push 10 opponents into buzzsaws
Reach level 20
Complete an event in a group
Collect 100 items (not including exclusive rewards)
Get promoted to the Silver division
Use Lt. Shields' Shotgun & Marked Man to destroy a full health opponent
Win every round in an elimination event
Use ultimate abilities 10 times
Shatter a frozen opponent using Viktoriya Tennikost's Ice Axe
Complete an online event with every car
Reach level 10
Collect 50 items (not including exclusive rewards)
Hit a burning opponent with a COBRA H.I.S.S Heat-Seeking Missile
Hit 3 opponents with a single Life Ring from Captain Smallbeard
Explode a burning enemy with El Incendio's Nitro Tank
Destroy 2 opponents with a single Rapid Fire as G.I. JOE MOBAT
Destroy all 3 opponents in a single life during a free-for-all skirmish
Complete a ranked event
Complete a special event
Finish an event using a newly equipped item
Complete your first online event
Complete the tutorial
Get all other achievements
As Dr. Mel, resurrect every player on your team in a single battle
Get an assist on an opponent destroyed by the Ouija board