elude visibility
BS-X, Prototype, Unreleased & Other Unique ROMs
Marmalade Boy (Japan) (Sample 80%)
- - Matthew Callis

ママレード・ボーイ

Not sure about any differences in content, let me know if you notice any. Obvious text layout changes and some color tweaks. Hidden in the SRM was the string KUSOH KAGAKU0124.

Marmalade Boy (Japan)
Marmalade Boy (Japan) (Sample 80%)
2-Up Swipe Onion Skin
Marmalade Boy (Japan)
Marmalade Boy (Japan) (Sample 80%)
2-Up Swipe Onion Skin
Marmalade Boy (Japan)
Marmalade Boy (Japan) (Sample 80%)
2-Up Swipe Onion Skin
Marmalade Boy (Japan)
Marmalade Boy (Japan) (Sample 80%)
2-Up Swipe Onion Skin
Marmalade Boy (Japan)
Marmalade Boy (Japan) (Sample 80%)
2-Up Swipe Onion Skin
Marmalade Boy (Japan)
Marmalade Boy (Japan) (Sample 80%)
2-Up Swipe Onion Skin
Marmalade Boy (Japan)
Marmalade Boy (Japan) (Sample 80%)
2-Up Swipe Onion Skin
Marmalade Boy (Japan)
Marmalade Boy (Japan) (Sample 80%)
2-Up Swipe Onion Skin
Marmalade Boy (Japan)
Marmalade Boy (Japan) (Sample 80%)
2-Up Swipe Onion Skin
Marmalade Boy (Japan)
Marmalade Boy (Japan) (Sample 80%)
2-Up Swipe Onion Skin
Honoo no Doukyuuji - Dodge Danpei (Japan) (Sample)
- - Matthew Callis

炎の闘球児 ドッジ弾平

Honoo no Doukyuuji - Dodge Danpei - Title Screen

On the surface, it seems very similar to the final (maybe a few rows of pixels literally shifted 1 or 2 up or down) but there are many binary differences, with the first apparent one being that when you start, you get the ball and you do not have to jump for it.

Honoo no Doukyuuji - Dodge Danpei - Final Offset
Honoo no Doukyuuji - Dodge Danpei - Sample Offset
2-Up Swipe Onion Skin
Honoo no Doukyuuji - Dodge Danpei - Final Offset
Honoo no Doukyuuji - Dodge Danpei - Sample Offset
2-Up Swipe Onion Skin
The Bard's Tale - Tales of the Unknown (Japan) (Sample)
- - Matthew Callis

The Bard’s Tale: Shirarezaru Monogatari / バーズテイル 知られざる物語

The Bard's Tale - Tales of the Unknown (Japan) (Sample)

Super Chinese 2 - Dragon Kid (Japan) (Sample)
- - Matthew Callis

スーパーチャイニーズ2 ドラゴンキッド

Super Chinese 2 - Dragon Kid (Japan) (Sample)

Rainbow Islands - The Story of Bubble Bobble 2 (Japan) (Sample)
- - Matthew Callis

レインボーアイランド

Rainbow Islands - The Story of Bubble Bobble 2 (Japan) (Sample)

The first obvious difference is the SAMPLE VERSION label on the title screen. More importantly discovered by XKeeper the game has a demo that neither the Japanese nor the US versions have.