I know I'm not very far along on my engine at all, but still, I had an idea for an enemy and I'd love it if someone could hash a decent one together for me:
I want an NES-style sprite (i.e. 3 colors + 3 colors for the hidden face) consisting of a mash-up of the robed men from Simon's Quest or Sypha's sprites from Dracula's Curse, or something very similar in design (but not the ghouls, because I need the arms down), and a fishman; or it could be ghoulesque but with the arms down near its side (would take more work, though). Ideally, it would shamble along with its face concealed in the shadow of the cloak, but then it tilts its head back and the cloak shifts back a little to reveal a fishman's head, which then spits at the player before concealing itself under the hood again. It's basically a concept for an elder citizen in a port town predating Innsmouth by many centuries. In other words, the concept would be something like this: