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