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