World 1Alright, here's a brief cheat sheet for my Super World levels. It'll have the available power-ups, Star Coin locations, and bosses (if there are any).
If you want to play the levels blind, please go back to the Super World page.
World 1
1-1: Let's-a Go!
Power-Ups: 
, 
1: Above the first yellow pipe.
2: In the bonus area.
3: Above the second yellow pipe.
1-2: Into the Underground
Power-Ups: ,
1: In the mini-cave.
2: On the top path of the split path.
3: Near the ceiling after passing the red Parakoopa.
1-3: Pipe Hills
Power-Ups: , , 
1: Above the big Piranha Plant on the clear pipe.
2: On top of the semi-solid platform after the checkpoint.
3: Inside the goal staircase.
1-4: Into the... Water?
Power-Ups: ,
1: In the bonus area.
2: On the blue pipe directly before the checkpoint.
3: Between the goal staircase and the flagpole.
1-5: Lemmy's Bumper Bouncehouse
Boss: Lemmy Koopa
Power-Ups: ,
1: In the bonus area.
2: In the bottom path of the split path.
3: Between the last two Bumpers before the pipe to Lemmy Koopa.
World 2
2-1: Buzzy Beetle Cavern
Power-Ups: ,
1: Above the Buzzy Beetle practicing proper social distancing.
2: In the pit by the second Fire Piranha Plant.
3: Near the ceiling where the big Buzzy Beetle drops down.
2-2: Water Balloon Lagoon
Power-Ups: 
1: At the ceiling before you enter the water.
2: In the first mini-cave, guarded by some Blurps.
3: In the third mini-cave, guarded by some Blurps.
2-3: Parabeetle Dome
Power-Ups: ,
1: Above the first giant pit.
2: Inside the wall between the second and third giant pits.
3: Above the fourth giant pit.
2-4: Secret of the Boomerang Flower
Power-Ups: , 
, 
1: Below the first semi-solid platform.
2: Encased in red dotted-line blocks.
3: Inside the red dotted-line block portion of the goal staircase.
2-5: Larry's Lava Bubble Lair
Boss: Larry Koopa
Power-Ups: ,
1: In the bonus area.
2: On tracks in the bottom path of the first split path.
3: On tracks cycling around the second set of split paths.
World 3
3-1: Ant Trooper Woods
Power-Ups: ,
1: Above the first floating platform.
2: In the bonus area.
3: Above the eighth floating platform/third floating platform after the checkpoint.
3-2: Foreign Fungi
Power-Ups: , 
1: In the water after the third green pipe.
2: Above the checkpoint.
3: In the water after the ninth green pipe/sixth green pipe after the checkpoint.
3-3: Fortress in the Forest
Boss: Boom Boom
Power-Ups: , 
1: Beneath a ledge after the second power-up block.
2: Near the ceiling of Boom Boom's boss room.
3: Near the top of the fortress after leaving.
3-4: Midnight Poison Ivy
Power-Ups: ,
1: In the cave after the first green Paratroopa.
2: In the cave after the first big red Koopa Troopa, behind hard blocks.
3: Above the second bridge semi-solid platform/first bridge semi-solid platform after the checkpoint.
3-5: Iggy's Switch Palace
Boss: Iggy Koopa
Power-Ups: ,
1: After the first conveyor belt, encased in blue dotted-line blocks.
2: Before the first set of Zappa Mechakoopas, encased in blue dotted-line blocks.
3: Above the pipe to Iggy Koopa.
World 4
4-1: Spike Snowball Fight
Power-Ups: ,
1: In the first pit.
2: In the third pit.
3: Above the vine block stuck in the ground.
4-2: Swimming Through the Glacier
Power-Ups: , , 
1: Encased in question blocks near the first Porcupuffer.
2: In the bonus area.
3: Encased in question blocks after the second Porcupuffer.
4-3: Freezy Flake Cave
Power-Ups: ,
1: Encased in frozen coins near a Burner on tracks.
2: Encased in frozen coins right after the checkpoint.
3: Encased in frozen coins above a POW Block also encased in frozen coins.
4-4: Flying over Freezing Skies
Boss: Boom Boom
Power-Ups: ,
1: On the top of the first split path.
2: On the top of the second split path.
3: Right after the goal staircase.
4-5: Wendy's Freezeflame Villa
Boss: Wendy O. Koopa
Power-Ups: ,
1: On the bottom of the split path.
2: Under an icicle before the checkpoint.
3: In the lava under two icicles.
World 5
5-1: Spiky Spiny Desert
Power-Ups: , , 
1: In the second pit.
2: In the third pit.
3: Encased in question blocks before the goal gate.
5-2: Sun-Bleached Sands
Power-Ups: , 
1: Above the flying Fire Piranha Plant.
2: Above the Fire Piranha Plant after the second power-up block.
3: Below the tracks.
5-3: Fort Bob-omb
Boss: Pom Pom
Power-Ups: , 
1: Near the ceiling above the first coin ledge.
2: Encased in hard blocks above the first Star Coin.
3: Encased in hard blocks below the Warp Box ledge.
5-4: Evening Desert Winds
Power-Ups: ,
1: In a pit after the third Pokey.
2: In a pit after the checkpoint.
3: Near the winged Pokey.
5-5: Morton's Squish Kebab Castle
Boss: Morton Koopa Jr.
Power-Ups: , , 
1: In the first bonus area accessed via the first green pipe.
2: In the second bonus area accessed via the second red pipe.
3: Inside the sideways Thwomp.
World 6
6-1: Enter the Propeller Box
Power-Ups: 
1: Under a ledge after the first Bully.
2: Under the ledge holding the first blue pipe.
3: Under a ledge after the eighth Bully/second Bully after the checkpoint.
6-2: Sky High Koopas
Power-Ups: ,
1: Behind brick blocks after the first yellow pipe.
2: In a pit below a brick block after the checkpoint.
3: In a pit after the second Star Coin.
6-3: Fight the Koopa Prince!
Boss: Bowser Jr.
Power-Ups: ,
1: Behind rotating blocks after the first pit.
2: On a ledge after the first blue pipe.
3: In a pit after the green Paratroopa spawner.
6-4: Small Platforms, Big Mushrooms
Power-Ups: , 
1: In the bonus area.
2: On a semi-solid platform above the first angry Wiggler.
3: Below hard blocks before the second angry Wiggler.
6-5: Roy's Bill Blastin' Bunker
Boss: Roy Koopa
Power-Ups: ,
1: Under a ledge near the second Bull's-Eye Blaster.
2: In the bonus area.
3: Near the ceiling after the fourth hanging platform.
World 7
7-1: Fish Bone Belt
Power-Ups: ,
1: Above the platform after the first blue pipe.
2: In a pit after the second power-up block.
3: In a pit under a ledge after the checkpoint.
7-2: Abandoned Boo Nebula
Power-Ups: , 
1: In the first pit.
2: On a ledge guarded by the second set of Boo Buddies.
3: Under the goal staircase.
7-3: Galactic Magic Trick
Power-Ups: ,
1: Encased in brick blocks next to two stacked Magikoopas.
2: Encased in brick blocks on the bottom of the second split path.
3: Behind a brick block inside a platform after the checkpoint.
7-4: Shimmering Starship
Boss: Pom Pom
Power-Ups:
1: Under a ledge over the second pit.
2: Under the two red pipes above a pit.
3: Encased in bricks before the big, winged Bully.
7-5: Ludwig's Snake Block Outpost
Boss: Ludwig von Koopa
Power-Ups: , 
1: Near the ceiling during the first snake block section.
2: On the fourth Fire Bar during the second snake block section.
3: Before the eighth Fire Bar/second Fire Bar after the checkpoint during the third snake block section.
World 8
8-1: Storming the Castle Walls
Boss: Pom Pom
Power-Ups: ,
1: Halfway in the lava in the first pit.
2: Halfway in the lava in the pit before the checkpoint.
3: Halfway in the lava in the pit before the second power-up block.
8-2: Red-Hot Haunt
Power-Ups: 
1: Above the power-up block.
2: Between the seventh and eighth pits.
3: Encased in brick blocks before the roulette goal.
8-3: Approach the Final Castle
Boss: Boom Boom
Power-Ups: None
1: Above the third platform.
2: In the bonus area.
3: Above the Lava Bubble spawner.
8-4: Bowser Jr.'s Airship Ambush
Boss: Bowser Jr. and Ludwig von Koopa
Power-Ups: , 
1: Above the third pit.
2: Above the eighth pit.
3: Under the goal staircase.
8-5: Bowser's Grueling Gauntlet
Boss: King Bowser Koopa
Power-Ups: , , , ,
1: Behind a brick block before the first checkpoint.
2: Above a pit before the door to the second checkpoint.
3: Near the ceiling of Bowser's boss room.
Total : 120