Here is the full list of all 30 Sausage Fiesta achievements.
Get 5 points in The Floor Is Lava in Kitchen
Get 10 points in The Floor Is Lava in Kitchen
Get 15 points in The Floor Is Lava in Kitchen
Get 5 points in The Floor Is Lava in Gas Station
Get 10 points in The Floor Is Lava in Gas Station
Get 15 points in The Floor Is Lava in Gas Station
Get 5 points in The Floor Is Lava in Space Station
Get 10 points in The Floor Is Lava in Space Station
Get 15 points in The Floor Is Lava in Space Station
Get 1st place in Race Mode in Kitchen (at least 2 players)
Get 1st place in Race Mode in Gas Station (at least 2 players)
Get 1st place in Race Mode in Space Station (at least 2 players)
Get 1st place in The Floor Is Lava in Kitchen (at least 2 players)
Get 1st place in The Floor Is Lava in Gas Station (at least 2 players)
Get 1st place in The Floor Is Lava in Space Station (at least 2 players)
Play with 4 players in session at once
Get level 2
Get level 3
Get level 4
Get level 5
Get level 6
Get level 7
Get level 8
Get level 9
Get level 10
Get level 11
Get level 12
Get level 13
Get level 14
Get level 15