There’s a lot of potential in this silly old game, the game itself does have multiplayer so that may need to be kept in mind.
I’ll list a couple of random suggestions off the top of my head to get it started.
Gain/Take Brouzouf
Give/Take Weapon
Drain Psy
Unlimited Psy
Unlimited Ammo
Take Ammo
Break Legs (This is the worst thing you can do in EYE)
Inflict Madness
Inflict Hemorrhage
Get Hacked
No Maintenance (Cant cure debuff/broken legs)
Increase/Decrease Karma
Give Mortal Wound
Remove Mortal Wound
Spawn Enemies (Constant Enemy Reinforcement/Spawn for 60 seconds) / or just spawn a bunch of various enemies near the player.
Increase/Decrease Stat
Kill Player
Change Armor (Light/Medium/Heavy)
No Fall Damage
Force Sword Usage (30 Seconds)
1 Hit KO
Heal Players
Damage Players
Give/Take Research
Spawn: Deus Ex or Kraak
Super Speed Players
Super Slow Players