Here is the full list of all 27 Astro Joust achievements.
Start the Game
Play 10 Games
Play 50 Games
Jump 1,000 Times
Jump 10,000 Times
Jump 50,000 Times Collective
Hit 10 Players
Hit 100 Players
Hit 1000 Players Collective
Travel the World
Become a Saw, a Laser, and a Crusher.
Laser Kills 10
Laser Kills 50
Saw Kills 10
Saw Kills 50
Crush 10
Crush 50
Collide w/ Players 10
Collide w/ Players 50
Look at Credits
Sub to Newsletter
This is Sparta
10 Wins
10 Losses
Dash 500 Times
Dash 1,000 Times
Dash 10,000 Times Collective