Yeah, neither of these bosses are really set up for lower difficulties or anything like that; consider these the "hard mode" versions. Though, Chris has set them to be later floors only, so they're not going to get lowered THAT much for normal mode (I'll be taking another stab at getting some of these bosses setup for difficulty changes today).
And yes, I can change the colors of some of the bullets, no problem. Though, in some cases, what really needs to happen to make certain specific shots stand out is a size change, not a color change; that'll come in the future but is not available yet. Typically this would be for "important" bullets that, well, DO things. Usually things like making more bullets.
On a total side note, I've no idea why "Staccato" was changed to "Lady Staccato", that kinda surprised me.... but whatever, as long as it obliterates- er, I mean, challenges players, that's good.
More to come in .138.