I'm thinking of a Super Pitfall-esque platformer. But, no one has a spelunker with a hard hat - just the Indiana Jones looking stuff. Currently making Genesis homebrew so less than 16 colors. Might be an idea for a future asset pack. :)
Something like an indie Pitfall Harry (Super Pitfall version) sprite with walk, jump, climb ladder, shoot, crouch and shoot. But, now that I type it out that sounds like quite a chore. :)