Here is the full list of all 50 MUD Motocross World Championship achievements.
Visit one of the available Arenas in MUD World Tour
Win a Quick Race in Multiplayer
Earn 450 experience points in a Quick Race in Multiplayer
Win a Monster Energy FIM MXoN in Multiplayer
Take part in 20 races in Multiplayer
Complete 100 races in Multiplayer
Reach Level 20 in Multiplayer
Reach Level 50 in Multiplayer
Create a Lobby and Start a race!