Maybe add some nerve gas in a later update? Nothing like some good old pest control. The best way to make it would be to have it as a fast moving, mostly clear liquid. It would do damage even if you had the O2 nanotech since many kinds of gas can work on just skin contact. I would have the damage set rather high, but it would still be the same type as poision. This way with the anti-poison you can still block it, yet it won't be just a colour swap.
Hey I tried to use your mod and I ended up getting an error that crashes my game when it tries to start up. I'm not sure if it's because some mods are incompatable but here's a list of the ones I have Hylian Weapons of Legens QuickQuests Smr SpawnableItemPack SpawnableItemPackObjects Vespoids and Xbawks extended race selector.
The_Turret_Boy updated GLaDOS Mod with a new update entry: Outdated! it doesn't work for Glad Giraffe! Read the rest of this update entry...
update the mod you made for me or ill deactivate you The_turret_boy ( I wont actually deactivate you because then you wont be able to update my mod also I WOULD do it myself but my coding program has been offline for quite a while and I cant seem to get it back online) also you should add the aperture science handheld portal device and long fall boots.