Bomber King

Japanese - American

The American release changed the logo entirely; replaced all mention of Hudson with Jaleco and altered the copyright jargon; and changed the font palette from orange to blue.

American - European

"Licensed by Nintendo of America Inc" is shortened to "Licensed by Nintendo".

Japanese - American

Bomber King features a "HUDSON PRESENTS" screen upon booting up. Robo Warrior skips it and goes straight to the intro.

Japanese - American

In the Japanese version, a bomb blast will kill you instantly (or, at least, remove five tanks from your health). The English release tones it down a notch, merely depleting two tanks, allowing you to survive three blasts right from the start.

TOP: Japanese - BOTTOM: US/EU

All items with Kanji text in Bomber King were modified to visual icons in Robo Warrior.

TOP: Japanese - BOTTOM: US/EU

This one-eyed blob thing was made into a sad face for Robo Warrior. Who knows why.

This chunk of something appears only in Robo Warrior's graphic tiles. It doesn't appear in Bomber King's graphic data. If I had any real experience with the game this would probably go under the Unused Materials banner, but I don't.