Here is the full list of all 29 Gotcha Racing 2nd achievements.
Cleared Grade C
Finished 50 races
Got a Super Rare body from the Capsule Machine
Got Super Rare tires from the Capsule Machine
Used the Capsule Machine 100 times
Cleared Grade D
Cleared Grade E
Played a mini game
Cleared Grade F
Used the Capsule Machine 50 times
Fused parts
Competed in VS Mode
Used the Capsule Machine
Used a Machine Action and completed a race
Earned all achievements
Cleared Grade B
Cleared Grade A
Finished 100 races
Finished 200 races
Got a Super Rare engine from the Capsule Machine
Got a Super Rare accessory from the Capsule Machine
Ranked in on Time Attack
Raced against ghost data on Time Attack
Left ghost data on all courses on Time Attack
Joined a Time Attack event
Ranked in on the finals in a Time Attack event
Finished a race with RC settings
Earned 500,000 G
Earned 1,000,000 G