Astyanax

Seeing as he's supposed to be from our world (and time)...who the heck names their kid Astyanax? How do you even pronounce it...?

Title Screen
The game logo was redone to accommodate the new name, and the Jaleco logo was removed.

The Medusa boss had a bit of breast reduction, and features a scaled chest in the final U.S. and European versions of the game instead.

Sound Test
At the title screen, press Up, Down, Right, Left, Up, Down, Right, Left, Start. Up and Down select the music, and B plays; sound effects are selected with Left / Right and A.

Stage Select
At the title screen, press Up, Down, Left, Right, B, B, B, B, Start.

Demo Select
At the title screen, press Up, Up, Up, Down, Down, Down, A, B, Start. Press Start to exit back to the demo menu.

At the Demo Select menu, press B, B, A, A, B, A, Up, Down, Start to see the ending sequence. Oddly enough, this ending is different from the usual one in that it shows the developer credits at the end. The credits sequence was retained in the US version, but left untranslated.