Wow, I would never have imagined that my game would be streamed! It's an achievement. I enjoyed watching your stream and I'm happy to see that you quickly understood the mechanics (I spent a lot of time designing the UI).
Your viewer was right: loot on floor have the color of their feature type and the letter of their associated weapon. If you search narcoleptic features only, since telepathic weapon are strong against them, you only need to search for "t" loot. And if you search for telepathic mapgen, it's a purple "t".
A few tips: wield a basic weapon when you are overwhelmed. Bugs that miss you may take damage. And try to get faster to the boss: the sooner you get there, the most "health" (time) you have! The game is hard but winnable.
I don't plan to continue with the game but I will maintain it (bugfix and balance ). I think the game is complete and elegant at its current state. If someone wants to continue it, they can: it's an open source game.
If you have any question or any advice on how to enhance the game, don't hesitate to tell me :)