Star Trigon (Arcade)

Star Trigon
Developer: Namco Publisher: Namco Platform: Arcade (Namco System 10) Released in JP: July 2002 This game has debugging material.

Star Trigon is a spin-off of the Mr. Driller series in which the player must draw triangles to rescue aliens.

Debug Menu

A simple debug menu can be accessed by enabling the following MAME cheat and then going to the operator menu:

<cheat desc="debug">
  <script state="run">
    <action>maincpu.pb@80037d78=02</action>
  </script>
  <script state="off">
    <action>maincpu.pb@80037d78=03</action>
  </script>
</cheat>

Notably, it is impossible to scroll through the functions or change their parameters using the game's used inputs, essentially locking the player until the code is disabled.

The functions are as follows:

• STAGE SELECT - Chooses between the available levels.
• INPUT - Changes between using only the buttons or also using a lever. The latter doesn't seem to do anything, however.
• PLAYER TYPE - Chooses between the three available characters.
• PLAYBACK - Warps to the attract mode demo sequence.
• EXIT(GO TITLE) - Warps to the title screen.
• EXIT(GO GAME) - Warps to gameplay.

(Source: WindyFairy)