Double Dragon (Neo Geo)

Double Dragon
Developer: Technos Japan Publisher: SNK Platforms: Neo Geo, Arcade (Neo Geo) Released internationally: March 3, 1995 (MVS), March 31, 1995 (AES) This game has debugging material.

A 1-on-1 fighter loosely based on the 1994 live-action movie. It was the last Double Dragon game developed by Technos and also the last one to be released for arcades.

Debug Dipswitches

Enable these via the Debug BIOS to achieve the desired effect:

Debug Dip	Effect
1-1	Makes it impossible for any character to turn around. If one jumps over the other, then they won't be able to change the direction they're facing unless they get hit by an attack or jump over each other.
2-1	Causes the fight to run at half speed. The background animations are also affected, but sound effects, music, and other animations and transitions are not.
2-2	Causes both players to be invincible.
2-3	Maxes out both players' CHARGE bar immediately.

(Source: Neo-Geo.com Wiki)

Regional Differences

The Japanese AES version has an extra menu screen right before the option menu.

Version Differences

Character Selection Screen

Finish the AES version with any character and the next time you play, the character selection screen will change the portraits to comical-looking ones.

Professional Mode

In the AES version, press D, D, B, C, D, Select while in the option menu to select the Professional difficulty option. You'll hear "Bingo" if the code was entered correctly.

Credits

The Neo Geo MVS version shows the special credits for beating the game without using a continue, whereas the home console (AES) version shows it for beating the game on Professional difficulty.