Cheat mode
Enter one of the following codes at the main menu to activate the corresponding cheat function.
| Experimental PQZ ship | techno |
| TX Silvercloud ship | unknown |
| Stormwind - The Elemental ship | stormwind |
| Ninja Star ship | stealth |
| Foodship Nine ship | weird |
| Dragon ship | lizard |
| Captured U-fighter | enemy |
| Pretzel Pete Truck ship | pretzel |
| Nort-Ship Z | nortshipz |
| Destruct mini-game<SUP>1</SUP> | destruct |
| Super Tyrian mode on Lord of the Game difficulty | engage |
| Super Tyrian mode on Suicide difficulty | Hold [Scroll Lock] and type engage |
1. Press [F1] during the mini-game for the controls.
Cheat mode (alternate)
Enter one of the following codes during game play to activate the corresponding cheat function. The message "Cheaters always prosper" will appear to confirm correct code entry.
| Toggle debug mode | [Backspace] + [F10] |
| Toggle invincibility | [F2] + [F3] + [F6] |
| Random colors | [Backspace] + [Minus] |
| End level<SUP>1</SUP> | [F2] + [F6] + [F7] |
| Full pause screen | [Backspace] + [Number Lock] |
| Random background music | [Backspace] + [Scroll Lock] |
1. Does not effect Super Arcade ships or during game play in Super Tyrian mode.
Impossible difficulty setting
Press [Shift] + G at the difficulty selection screen.
More ships
Press [Tab] + 1, 2, 3, 4, 5, 6, 7, 8, 9, or "0" during game play to get different ships. You can edit these ships by going to "Start/Programs/Tyrian2000", then select "Ship edit". Choose "Ships", then edit them as desired. Activate the ship by pressing [Tab] and whatever number ship you are doing for player one, and [Caps Lock] and whatever number ship you are doing for player two. In a game, get this ship by pressing [Tab] and the corresponding number.
Suicide difficulty setting
Enable the "Impossible difficulty setting" code, then press [Shift] + ] at the difficulty selection screen.
Wild detail mode
Run the Tyrian 2000 setup program. Highlight the "Game Detail" option and press W.
Lord Of The Game mode
After enabling the impossible and suicide skill levels, hold [Scroll Lock] + L + O + R + D.
Christmas mode
Open an MS-DOS window and change the current directory to the Tyrian 2000 game directory. Type "file0001 yesxmas" at the DOS prompt, then press Y when prompted. This will change various items, weapons, ships, and sounds to a Christmas theme. Note: Christmas mode is date-sensitive and will only be remain active until December 31, 1999.
Glitch: Incomplete Bosses
Destroy some Bosses before they completely enter the screen (for example, with Level 11 Laser, on the Tyrian Ep. 1 Boss). Their back half will appear without the rest of the ship.
Glitch: Gravity orb treasure
On some of the asteroid levels, a "gravity orb" (small red and green orb that push you sideways) may slide in from the side. Fly directly over it , and it will act like a treasure and disappear, with a sound as if you just collected a treasure.