And about the bombs: I first made them with a skull, but people said it should be unique, so I made a new one with chdata's ?-idea, i don't know If people would think it is funny.
i think we can use terrys version of the bomb as normal bob-omb, wether we add a "random-bomb" or not.
And the sandbug is good i think, it still needs fine tuning like black outlines and a special palette where it is used. I'll try to work on that.
Oh and the reset doors... I think we should use the ones from the ghost house, but they must be recolored
Edit: I made a seconds version of the sandbug with black outlines and only 3 tones of brown.
The jaws are to filigree to add black outlines I think, but that should be decent.
Maybe it could be lighter overall, but it still needs a special palette where it is used anyway, to show it in good colors
And in case you like the eye-fish, I did some changes and recolored it with Terrys hq palettes in some variations:
(raocow allowed spoiler)