As far as I can tell, the only
truly non-disarmable one is the Non-detectable, repeating, Fireball trap in the kitchen hallway on WK -1. Where did you find the other non-disarmable Trap? I'll bet you a dollar that going up to 100% Traps would have worked on it.
In a perfect world, this forum would dispense tips & tricks only upon request, or as needed. But some people just love to show off how much they know about the game, and will gladly spout off about the very last fight of the game to some poor newbie who just asked a question about how to Backstab. So, to counteract that, I tend to be rather anal about spoilers and things.
This forum is indeed a very good place to go when you're having difficulty with things like Battle Horrors. As long as you don't let anybody take you by the hand and spoon-feed you tips, you'll do just fine. I think that more
general hints, like the ones I gave above, are best, because now you have enough information to work out a strategy, but I didn't work out a strategy
for you.