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