| Xenon 2 When choosing display adapter, confirm with F7 for invulnerbability |
| Xenophage BLOOD - Bloodier combat STAIN - Blood stains the ground HELIUM - Low gravity GLASSJAW - Fighters are stunned everytime they are hit INVISIBLE - Fighters become invisible SHADOWS - Fighters become invisible except their shadows BISHOP - Announcer says: You suck! THOUGHTJINX - Fighters die immediately |
| XS Enter these as your name: MEDICAL - Access secret level PENSION - Access another secret level |
| X-Wing Type WIN during the flight and you have unlimited weapons and shields |
| Xybots Get a high score and enter 'ALF' for your name. Now you will have unlimited lives |