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