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.
Use the Indigo Asteroid to find a bonus room.
Earn at least 3 bonuses when you reach the goal.
Grab a ledge and climb up 5 times. It's climbing practice!
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.
Jump 30 times. Up, up, and away!
Kick an enemy into another enemy. Give' em the boot!
Defeat 50 enemies. This is what you've trained for!
Run along the walls for at least 10 meters. Who needs gravity?
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!
Collect 1000 Rings. A grand achievement!
Collect 1250 Rings. You can't ever have enough.
Collect 1500 Rings. You can't ever have enough.
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 50 Rings.
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!
Move along the ceiling for at least 5 seconds. Acrobat extraordinaire!
Spin Dash for at least 5 seconds. Getting faster!
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 20 meters. Who needs gravity?
Run along the walls for at least 30 meters. Gotta go fast!
Defeat 10 enemies with the Spin Dash.
Defeat 20 enemies with the Spin Dash.
Defeat 30 enemies with the Spin Dash.
Defeat 10 enemies by Bouncing.
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 75 enemies. This is what you've trained for!
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 6 1-Ups? Keep going!
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.
Wreak havoc for at least 30 seconds with the Yellow Drill.
Perform 5 Drill Jumps with the Yellow Drill.
Perform 10 Drill Jumps with the Yellow Drill.
Perform 20 Drill Jumps with the Yellow Drill.
Defeat 10 enemies with the Yellow Drill.
Collect 50 Rings while in Yellow Drill form.
Collect 10 Rings with the Orange Rocket.
Collect 50 Rings with the Orange Rocket.
Wreak havoc for at least 20 seconds in Indigo Asteroid form.
Destroy 10 pieces of terrain with the Indigo Asteroid.
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.
Collect 100 Rings with the Indigo Asteroid.
Fly for at least 30 seconds as the Crimson Eagle.
Collect 50 Rings with the Crimson Eagle.
Collect 100 Rings with the Magenta Rhythm.
Collect 200 Rings with the Magenta Rhythm.
Defeat an enemy with a Black Bomb explosion.
Defeat at least 3 enemies at once with a Black Bomb explosion.
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 5 bonuses when you reach the goal.
Earn at least 8 bonuses when you reach the goal.
Clear a zone without losing a Life.
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 Zazz without taking damage in the world's final zone.
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.