List of items in each level. This is more for a reference as it has everything. Also this is just a notepad doc of mine so sorry for the lack of formatting. Amusement World
1-1 Bomb x2
Flame
Egg
1-2 Bomb
Skate
Apple
Egg
1-3 Flame
Kick (IMPORTANT)
Heart
1-4 Bomb
Power Glove (IMPORTANT)
Egg
2 Power Ups from enemies (Random)
1-5 Flame
Skate
Kick
Bombproof
1-6 Bomb
Flame
Clock
Egg
Power Up from Enemy (Random)

Samurai World
2-1 Bomb
Flame
Egg
2-2 Bomb
Skate
Bomb Pass
Apple
Bead Bomb (always in "hidden area" at top right)
2-3 Flame
Heart
Egg
2-4 Skate
Kick
1-Up
2-5 Bomb
Flame
Powerbomb
2-6 Bomb
Flame
Skate
Line Bomb (IMPORTANT)
Egg
2-7 Flame
Power Glove
Heart
2-8 Bomb
Kick
Bomb Proof
Remote Bomb (IMPORTANT)
Egg

Wild West World
3-1 Bomb
Flame
Skate
Sandals
Egg
3-2 Bomb
Flame
Kick
3-3 Bomb x2
Power Glove
Rubber Bomb
Heart
Egg
3-4 Flame
Bead Bomb
Apple
3-5 Skate
Power Bomb
1-Up
3-6 Bomb
Remote Bomb
Pierce Bomb
Egg
3-7 Flame
Bomb Proof
Heart (always in the "hidden area" at top left)
3-8 Flame
Soft Block Pass (IMPORTANT)
Egg

Dino World
4-1 Bomb
Flame
Skates
Meat
Egg
4-2 Bomb
Flame
Line Bomb
4-3 Rubber Bomb
Bomb Pass
4-4 Bomb
Flame
Sandals
Egg
4-5 Bomb
Flame
Remote Bomb
Egg
4-6 Bomb
Kick
Soft Block Pass
Pierce Bomb & Heart (In "Hidden Area" on left side)
4-7 Bomb
Bead Bomb
Meat
Ice Cream
4-8 Bomb
Flame
Clock
Heart
Egg

Future World
5-1 Bomb
Flame
Skate
Heart
5-2 Bomb
Flame
Power Bomb
Bomb Pass
5-3 Flame
Line Bomb
Apple
Egg
5-4 Kick
Bomb Proof
5-S1 Bomb
Flame
Egg
5-S2 Bomb
Pierce Bomb
Heart
5-S3 Flame
Remote Bomb
1-Up
5-S4 Bomb
Flame
Ice Cream
Meat
Heart
Egg