Here is the full list of all 12 Type:Rider achievements. It takes around 3-4 hours to unlock all of the achievements on Windows.
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Finish the Clarendon level without dying
Read all the books
Finish the secret level
Retrieve all asterisks
Collect all letters
Locate the eight hidden ampersands
Finish the game
Make a 360° in the air
Make seven wall jumps in a row
Find one ampersand
Retrieve all six asterisks in one chapter