Here is the full list of all 10 Muddledash achievements.
Stun someone in the same second they stun you
Stun 2 players before hitting the ground
Jump off a dashing player's head
Kick a dashing pode
Pick up the present while stunned
Don’t let anyone else touch the present
Win a match without touching the present until the very end
Win a match without kicking
3 Seconds of air time
Uncover the secret ingredient to a grand night