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