Hidden Skin 4: Donuts (Day 4)
Hidden Skin 5: Cupcakes (Day 5)
Hidden Skin 6: Wheels and Tires (Day 6)
Red Triangle Road: Complete one classic challenge.
Green Rectangles Road: Complete five classic challenges.
Purple Diamonds Road: Complete eight classic challenges.
Green Hexagon Road: Complete 12 classic challenges.
Blue Chevrons Road: Complete fifteen classic challenges.
Maroon Checkerboard Road: Play one day in a row.
Green Rectangle Row Road: Play three days in a row.
Purple Sidewinder Road: Play five days in a row.
Green/blue road with lanes: Play seven days in a row.
Blue small-chevron road: Play fourteen days in a row.
Red street-like road: Play 21 days in a row.
Green road with arrows: Play in 100 total games.
Purple road with plus signs: Play in 120 total games.
Green road with stars: Play in 150 games total.