Here is the full list of all 22 Katana ZERO achievements. It takes around 20-25 hours to unlock all of the achievements on Windows.
Achieve a total rank of gold or higher in a full speedrun.
Complete a full run in hard mode.
Kill yourself in an elevator.
Found all the hidden keys.
Didn't wake up Leon.
You ruined his fresh track suit.
Found what the robber left behind.
Your trap card was activated.
You really liked petting that cat.
Jump off the balcony of the penthouse.
Why did you think it was a good idea to give him your Katana anyway?
Defeat the psychiatrist's final form.
In 1962, the Orlons released one of the all-time greatest doo wop hits, Don't Hang Up. Google it. Anyway, you hung up your phone a lot.
Fulfilled your secondary goal in the prison.
This will go well...
You stopped a suicide. With a murder.
Most people go right. You went left.
Beat Katana ZERO.
Complete The Dragon's tape.
Meet your final end in chinatown.
You killed a suspiciously familiar character on the Quiet Hills set.
Poor guy.