Astro Fang: Super Machine

Astro Fang: Super Machine is the story of a space vampire car set out to defend the Earth.... okay, I got nothing.

Unused Menu
Surprisingly, this game was meant to support the U-Force controller from Brøderbund. There is only menu text and some code left from this feature. This screen was made by hacking the continue menu with the title text and display routine from the joypad selection menu.

Stage Select
At the title screen press Up, Up, Down, Down, Up, Down, Down then A or B. Both enables a stage select by pressing Select on the stage display screen. Additionally the B button code gives you unlimited fuel.

Hidden Text
There is some hidden copyright text in ROM appears: GAME SOUND (C) COPYRIGHT 1990-03-20 SOFT MACHINE INC Nakakuma Akira