Here is the full list of all 29 SpeedRunners achievements.
Promote to the Beginner League
Beat the first Chapter in Story
Deflect a fireball with a shockwave
Hit three oppenents with one fireball
Freeze three opponents with one ray
Unlock Ranked matches
Grapple 100 opponents using the golden hook.
Dodge the Golden Hook 10 times.
Grapple someone from far away.
Grapple someone who just grappled you.
Witness the SpeedRoulette.
Drop a Crate on an opponent's head 10 times.
Use a bomb on two opponents at the same time.
Don't touch the floor for 30 seconds.
Overtake 1000 opponents.
Tackle 10 opponents mid-air.
Don't touch the floor for 10 seconds.
Don't touch the floor for 5 seconds.
Shoot yourself with your own rocket.
Block 10 Rockets with Crates.
Maintain superspeed for a full second
Promote to the Bronze League
Reach max XP
Block 10 golden hooks with crates
Beat the second Chapter in Story
Beat the third Chapter in Story
Beat the final Chapter in Story
Beat all Chapters on Unfair difficulty