Achievement Updates for UnMetal

Title: THE GREAT ESCAPE
[ID: 235775]
- Main Storyline: Yes


Title: SOMETHING STINKS REALLY BAD
[ID: 235776]
- Main Storyline: Yes


Title: IN THE LION'S DEN
[ID: 235777]
- Main Storyline: Yes


Title: WELCOME TO THE JUNGLE
[ID: 235778]
- Main Storyline: Yes


Title: THE BARRACKS
[ID: 235779]
- Main Storyline: Yes


Title: ENGINEERING PROBLEMS
[ID: 235780]
- Main Storyline: Yes


Title: BOOM DOCKS
[ID: 235781]
- Main Storyline: Yes


Title: A THOUSAND EYES ARE WATCHING YOU
[ID: 235782]
- Main Storyline: Yes


Title: JERICO'S HEART
[ID: 235783]
- Main Storyline: Yes


Title: ESCAPE COMPLETE!
[ID: 235784]
- Main Storyline: Yes


Title: SERGEANT
[ID: 235785]
- Level: Yes


Title: LIEUTENANT
[ID: 235786]
- Level: Yes


Title: MAJOR
[ID: 235787]
- Level: Yes


Title: COLONEL
[ID: 235788]
- Level: Yes


Title: GENERAL
[ID: 235789]
- Level: Yes


Title: SORT OF CHILDISH, DON'T YOU THINK?
[ID: 235792]
- Cumulative: Yes


Title: AS YOU WISH
[ID: 235793]
- Cumulative: Yes


Title: GOOD NIGHT
[ID: 235794]
- Cumulative: Yes


Title: RAGE AGAINST THE MACHINE
[ID: 235795]
- Cumulative: Yes


Title: POTTY TIME
[ID: 235797]
- Collectible: Yes


Title: SHREDDED TUNA
[ID: 235799]
- Cumulative: Yes


Title: MECHA-RACHNOPHOBIA
[ID: 235800]
- Cumulative: Yes


Title: LORD OF THE BULLETS
[ID: 235804]
- Cumulative: Yes


Title: SECRETS
[ID: 235806]
- Cumulative: Yes


Title: KNOCK KNOCK
[ID: 235809]
- Cumulative: Yes


Title: YOU'RE A TOUGH GUY
[ID: 235813]
- Difficulty-specific: Yes


Title: THE STEALTHY EXPERIENCE
[ID: 235814]
- Cumulative: Yes


Sources/Context:
None of the achievements are missable, as the game has a chapter select which loads your personal save file at the point you entered the chapter.

This means you can go back and replay any level to work on the max experience, potties, unique achievements, collectibles and cumulatives.

Source: 100% completion.