Here is the full list of all 57 HAAK achievements.
The base game contains 53 achievements, and there are 2 DLC packs containing 4 achievements.
Achieve 100% exploration.
Find 50 Mysterious Disks.
Destroy all 4 signal towers.
Obtain 4000+ Tongbao in total.
Find 30 Mysterious Disks.
Fuse 1 EP slot.
Fuse 5 HP slots
Thoroughly search North Station
Become a puppet of GAEL.
Dropped into the acid pool 10 times
Solved the maze in Momoyama.
Dropped into the pit of Sanhe Ruins
Kill 18 Laser Drones
Found 10 Mystic Disks
Complete [Pass the Tunnel]
Spend less than 8 minutes to escape from Metro Tunnel
Complete [Road to the South]
Smashed 10 Big Chests
Complete [North Station]
Use a Bathroom Portal once.
Change the color of your cape once.
Fuse a HP slot
Complete [Escape from Ruins]
Enter World Map
Defeat Wang Ping in Sanhe Ruins
Defeat Wang Ping in Sanhe Ruins within 3 minutes
Bitten to death by dogs 3 times
Electrocuted 10 times
Destroy 100 bricks
Found a hidden item
Found a Mystic Disk
Obtain a Power Glove
Squeezed to death
Stay in North Station for more than 2 hours
Pass through the heavily guarded pathway in the [Brewery] without shutting any of the 4 doors blocking the sight.
Defeated 3Kyo without getting damaged.
Brings hope to Good-Hearted Fort.
No death until beating Fatty.
Editor-in-chief Ben Dover thought you're really good.
Someone can actually beat the game in 5 hours, wow!