Here is the full list of all 74 Crash Bandicoot N. Sane Trilogy achievements. It takes around 40-50 hours to unlock all of the achievements on Windows.
Just "forget" it. Repeatedly.
Earn 99 Lives
Earn 27 Relics (gold or better)
Shoot 5 of them in a single level.
Earn 10 Relics (gold or better)
Earn 5 Relics
Earn 30 Relics (gold or better)
Seek and destroy. Again.
Shoot the Imposter
Avoid whatever he's flinging at you.
Have your bazooka ready.
Shoot a background UFO in Future Tense.
Die.
Defeat 5 enemies with Coco's Savage Hurricane Spin
Earn the Gems in the bonus levels
Earn 42 Gems
Discovered the Secret Exit in Dino Might!
Discovered the Secret Exit in Road Crash
Earn 21 Gems
Defeat 5 enemies with Coco's Double Leg Drop
Discover the Secret Exit in Diggin' It
Unlocked the Secret Exit in Hangin' Out
Unlocked the Secret Exit in Unbearable
Discover the Secret Exit in Air Crash
Discover a Gem Path after earning a Color Gem
Defeat N. Cortex
Defeat N. Gin
Die as Crash.
Defeat Tiny Tiger
Discover a Death Route
Discover the Secret Exit in Bear Down
Don't feel guilty about jumping on him.
Fly, then die.
Do hard time
Earn 26 Relics (gold or better)
Defeat the Komodo Brothers
Defeat N. Tropy
Defeat Dingodile
Earn 26 Gems
Seek and destroy
Earn the Key in Jaws of Darkness
Earn the Key in Sunset Vista
Discover a "?" Bonus Path
Earn 13 Gems
Defeat Ripper Roo
Defeat 5 enemies with Coco's Spin
Defeat N. Brio
Defeat Pinstripe Potoroo
Miss a lot of boxes.
Defeat Koala Kong
Spin away an Extra Life
Defeat Papu-Papu
Enter a Bonus Round after collecting 3 Character Tokens
In a single level, spin an enemy into another enemy twice