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.
Clear a zone without losing a Life.
Earn at least 5 bonuses when you reach the goal.
Spin Dash for at least 5 seconds. Getting faster!
Run along the walls for at least 20 meters. Who needs gravity?
Collect 100 Rings with the Magenta Rhythm.
Collect 1500 Rings. You can't ever have enough.
Can you find 6 1-Ups? Keep going!
Collect 50 Rings with the Crimson Eagle.
Defeat Zazz without taking damage in the world's final zone.
Collect 1250 Rings. You can't ever have enough.
Defeat 75 enemies. This is what you've trained for!
Clear a zone with at least 50 Rings.
Wreak havoc for at least 30 seconds with the Yellow Drill.
Defeat 10 enemies with the Yellow Drill.
Defeat 10 enemies with the Spin Dash.
Collect 10 Rings with the Orange Rocket.
Defeat at least 3 enemies at once with a Black Bomb explosion.
Defeat an enemy with a Black Bomb explosion.
Perform 5 Drill Jumps with the Yellow Drill.
Collect 1000 Rings. A grand achievement!
Defeat 10 enemies by Bouncing.
Earn at least 3 bonuses when you reach the goal.
Collect 100 Rings with the Indigo Asteroid.
Move along the ceiling for at least 5 seconds. Acrobat extraordinaire!
Grab a ledge and climb up 5 times. It's climbing practice!
Destroy 10 pieces of terrain with the Indigo Asteroid.
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!
Collect 10 Rings with the Cyan Laser.
Defeat 50 enemies. This is what you've trained for!
Jump 30 times. Up, up, and away!
Run along the walls for at least 10 meters. Who needs gravity?
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.
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.
Collect 1750 Rings. Wow, that's impressive!
Collect 2000 Rings. You can't ever have enough.
Collect 2250 Rings. You can't ever have enough.
Collect 2500 Rings. You can't ever have enough.
Collect 3000 Rings. An epic collection!
Collect 3500 Rings. You can't ever have enough.
Collect 4000 Rings. You can't ever have enough
Collect 4500 Rings. You can't ever have enough.
Clear a zone with at least 75 Rings.
Clear a zone with at least 100 Rings.
Clear a zone with at least 150 Rings.
Clear a zone with at least 200 Rings.
Clear a zone with at least 250 Rings.
Clear a zone with at least 300 Rings.
Clear a zone with at least 350 Rings.
Jump 100 times. Just keep going!
Jump 250 times. You're blasting off again!
Spin Dash for at least 10 seconds. Spin Dash master!
Pull off at least 5 Wall Jumps in a row. You're getting good at this!
Pull off at least 10 Wall Jumps in a row. Wow, you've got skills!
Pull off at least 20 Wall Jumps in a row. That qualifies as mad skills!
Run along the walls for at least 30 meters. Gotta go fast!
Defeat 20 enemies with the Spin Dash.
Defeat 30 enemies with the Spin Dash.
Defeat 20 enemies by Bouncing.
Defeat 30 enemies by Bouncing.
In a single attack, use 4 or more lock-ons to defeat one or more enemies.
In a single attack, use 6 or more lock-ons to defeat one or more enemies.
Defeat 100 enemies with Kicks. Now you're getting the hang of it!
Defeat 100 enemies. You're really getting the hang of this!
Defeat 200 enemies. They didn't know what hit 'em!
Defeat 250 enemies. This is what you've trained for!
Defeat 300 enemies. This is what you've trained for!
Can you find 9 1-Ups? Keep coming back for more!
Defeat 20 enemies with the Cyan Laser.
Collect 50 Rings with the Cyan Laser.
Perform 10 Drill Jumps with the Yellow Drill.
Perform 20 Drill Jumps with the Yellow Drill.
Collect 50 Rings while in Yellow Drill form.
Collect 50 Rings with the Orange Rocket.
Wreak havoc for at least 20 seconds in Indigo Asteroid form.
Destroy 20 pieces of terrain with the Indigo Asteroid.
Destroy 40 pieces of terrain with the Indigo Asteroid.
Defeat 20 enemies with the Indigo Asteroid.
Fly for at least 30 seconds as the Crimson Eagle.
Collect 200 Rings with the Magenta Rhythm.
Defeat at least 5 enemies at once with a Black Bomb explosion.
Collect 50 Rings with the Black Bomb.
See if you can clear a zone without defeating any enemies.
Earn at least 8 bonuses when you reach the goal.
Clear 3 zones without losing a Life.
Clear 5 zones without losing a Life.
Clear a zone without taking any damage.
Clear 3 zones without taking any damage.
Clear 5 zones without taking any damage.
Defeat Zomom without taking damage in the world's final zone.
Defeat Master Zik without taking damage in the world's final zone.
Defeat Zeena without taking damage in the world's final zone.
Defeat Zor without taking damage in the world's final zone.
Defeat Zavok without taking damage in the world's final zone.
Defeat Dr. Eggman without taking damage.