Commander Keen Episode 4: Secret of the Oracle

Commander Keen Episode 4: Secret of the Oracle
Also known as: Commander Keen: Secret of the Oracle Developer: id Software Publisher: Apogee Software Platform: DOS Released internationally: December 15, 1991 This game has unused graphics. This game has debugging material.

Commander Keen 4 is the first Commander Keen game with a soundtrack and is the first part of the "Goodbye Galaxy" sub-series.

Debug Mode

During gameplay, pressing A, 2, and Enter all at once will activate debug mode. (Early versions of the game do not require this step.) Once activated, these keys will perform the following functions:

• F10 + B - Change border color
• F10 + C - Show number of active/inactive objects in the level
• F10 + D - Record a demo
• F10 + E - Skip level
• F10 + G - Activates God Mode
• F10 + I - Free items
• F10 + J - Jump cheat
• F10 + M - Display how much memory is in use
• F10 + N - Turn clipping on and off
• F10 + S - Turns on and off slow motion
• F10 + T - Sprite test
• F10 + V - Add Extra VBLs
• F10 + W - Warp to level
• F10 + X - Extra Stuff
• F10 + Y - Reveal hidden areas

This also applies to Commander Keen Episodes 5 and 6.

Unused Graphic

It seems that a desert town was planned for Episode 4, but it was removed for unknown reasons. An overworld graphic still exists for this.

(Source: Shikadi - Keen Wiki)