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