Here is the full list of all 100 Sonic Lost World achievements. It takes around 20-25 hours to unlock all of the achievements on Windows.
Perform 20 Drill Jumps with the Yellow Drill.
Defeat Dr. Eggman without taking damage.
Collect 200 Rings with the Magenta Rhythm.
Collect 50 Rings with the Orange Rocket.
Destroy 40 pieces of terrain with the Indigo Asteroid.
Fly for at least 30 seconds as the Crimson Eagle.
Defeat at least 5 enemies at once with a Black Bomb explosion.
Collect 4500 Rings. You can't ever have enough.
Collect 4000 Rings. You can't ever have enough
Collect 50 Rings with the Cyan Laser.
Clear a zone with at least 350 Rings.
Defeat 300 enemies. This is what you've trained for!
Defeat 100 enemies with Kicks. Now you're getting the hang of it!
Defeat 250 enemies. This is what you've trained for!
Pull off at least 20 Wall Jumps in a row. That qualifies as mad skills!
Clear 5 zones without taking any damage.
Clear 5 zones without losing a Life.
Defeat 30 enemies with the Spin Dash.
Jump 250 times. You're blasting off again!
Spin Dash for at least 10 seconds. Spin Dash master!
Defeat Zavok without taking damage in the world's final zone.
Collect 3500 Rings. You can't ever have enough.
Clear a zone with at least 300 Rings.
Defeat 20 enemies with the Cyan Laser.
Collect 3000 Rings. An epic collection!
In a single attack, use 6 or more lock-ons to defeat one or more enemies.
Defeat 30 enemies by Bouncing.
Defeat 20 enemies with the Indigo Asteroid.
Earn at least 8 bonuses when you reach the goal.
Run along the walls for at least 30 meters. Gotta go fast!
Collect 2500 Rings. You can't ever have enough.
Pull off at least 10 Wall Jumps in a row. Wow, you've got skills!
Defeat Zor without taking damage in the world's final zone.
Can you find 9 1-Ups? Keep coming back for more!
Clear a zone with at least 250 Rings.
Clear 3 zones without taking any damage.
Defeat 20 enemies with the Spin Dash.
Defeat 200 enemies. They didn't know what hit 'em!
Perform 10 Drill Jumps with the Yellow Drill.
Clear a zone with at least 200 Rings.
Clear 3 zones without losing a Life.
Collect 2250 Rings. You can't ever have enough.
Defeat Zeena without taking damage in the world's final zone.
Collect 2000 Rings. You can't ever have enough.
Destroy 20 pieces of terrain with the Indigo Asteroid.
Defeat 20 enemies by Bouncing.
Clear a zone with at least 150 Rings.
Clear a zone without taking any damage.
Collect 50 Rings while in Yellow Drill form.
Defeat Master Zik without taking damage in the world's final zone.
See if you can clear a zone without defeating any enemies.
Collect 50 Rings with the Black Bomb.
Jump 100 times. Just keep going!
Defeat 100 enemies. You're really getting the hang of this!
Pull off at least 5 Wall Jumps in a row. You're getting good at this!
Clear a zone with at least 100 Rings.
Defeat at least 3 enemies at once with a Black Bomb explosion.
Defeat Zomom without taking damage in the world's final zone.
In a single attack, use 4 or more lock-ons to defeat one or more enemies.
Collect 1750 Rings. Wow, that's impressive!
Wreak havoc for at least 20 seconds in Indigo Asteroid form.
Clear a zone with at least 75 Rings.
Clear a zone without losing a Life.
Defeat Zazz without taking damage in the world's final zone.
Spin Dash for at least 5 seconds. Getting faster!
Earn at least 5 bonuses when you reach the goal.
Run along the walls for at least 20 meters. Who needs gravity?
Can you find 6 1-Ups? Keep going!
Collect 1500 Rings. You can't ever have enough.
Collect 100 Rings with the Magenta Rhythm.
Collect 50 Rings with the Crimson Eagle.
Defeat 75 enemies. This is what you've trained for!
Clear a zone with at least 50 Rings.
Defeat an enemy with a Black Bomb explosion.
Wreak havoc for at least 30 seconds with the Yellow Drill.
Collect 1250 Rings. You can't ever have enough.
Defeat 10 enemies with the Yellow Drill.
Defeat 10 enemies with the Spin Dash.
Collect 10 Rings with the Orange Rocket.
Perform 5 Drill Jumps with the Yellow Drill.
Collect 1000 Rings. A grand achievement!
Defeat 10 enemies by Bouncing.
Collect 100 Rings with the Indigo Asteroid.
Move along the ceiling for at least 5 seconds. Acrobat extraordinaire!
Earn at least 3 bonuses when you reach the goal.
Collect 10 Rings with the Cyan Laser.
Grab a ledge and climb up 5 times. It's climbing practice!
Destroy 10 pieces of terrain with the Indigo Asteroid.
Multi Lock-on to a single enemy and defeat it with a powerful Homing Attack.
Pull off a Wall Jump. Serious ninja skills!
Kick an enemy into another enemy. Give' em the boot!
Jump 30 times. Up, up, and away!
Defeat 50 enemies. This is what you've trained for!
Can you find 3 1-Ups? You can never have too many!
Use the Indigo Asteroid to find a bonus room.
Run along the walls for at least 10 meters. Who needs gravity?
Collect 750 Rings. Where are you keeping them all?!
Collect 500 Rings. You can't ever have enough.
Spin Dash for at least 2 seconds. Practice makes perfect!
In a single attack, use 3 or more lock-ons to defeat one or more enemies.