Qwarky | Sense: A Cyberpunk Ghost Story NG++ Final / Secret Ending (+ Dudou unlock sequence) @Qwarky | Uploaded January 2021 | Updated October 2024, 5 hours ago.
Here's the secret / final ending for anyone who doesn't wanna run through the game three times. Most of the ending is completely identical to any previous playthroughs, the only new part starts at 10:36 . If they ever end up making a sequel, I hope they make more use of the cyberpunk stuff, there wasn't nearly enough in this game.

As an extra, if you want to unlock the Dudou outfit, on NG+ (or NG++) examine the items in the final boss room in the sequence I did, so far left (bullet casings), far right (stone lion), right (mahjong table), middle (lottery), left (present). This needs to be done before you trigger the boss fight.