The Halloween Special Title update for Riding to Bounce City has 11 achievements.
Unlock character Roxanne
Get all the Castle decorations
Unlock "Road of coins hat"
Unlock "Camera hat"
Unlock "Clothes hat"
Unlock "Extra health hat"
Unlock "Excited mode healing hat"
Unlock "Extra batteries hat"
Unlock "Improved batteries hat"
Unlock "Improved excited mode hat"
Unlock "Inmortal dodge hat"