Lunar Dragon, All 102 exits(including glitched ones) twice, once before and after beating superstar road.

You may need to do an additional "All Star Block 1up" and "22 Star" for a true 100%. 
And maybe some hidden 1up mushrooms would be included... but since 100% completion is a vague standard in this game, I don't think this suggestion is a good idea!

True 100% Category

jensentotallyrocks

Jasper_fox

Super Mario World Extra Categories

Super Nintendo

Switch

SNES Classic Mini

Okashi

sora_yoshi

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Storster

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92 Exit

90 Exit

No Orb

Submap Warp

Map Sewing

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Exit Count

Super Mario

SMW Kaizo speed running on SNES CLASSIC CANOE/RETROARCH

Pacifist running in Butter bridge course 2

new category

New Category: Orb The Switches

96 Exit, No Cape

Umari0

FURiOUS

tm0153

DunkelGotik

Xander479

limestoners

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RedKiller

Pesu

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Double

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keap3

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supercontroller