I am also thinking about scaling the game. Flixel makes it easy to scale everything to 2x to get that great pixel-art old-timey feel we all love, and that's what I have been doing so far. I am thinking about doing away with scaling though and leaving all the graphics at actual size. I think it makes the world seem a little larger and more menacing when the player is just a tiny thing on a big dark screen, but you lose the nice, chunky detail.
Would love to know what y'all think about it:
The problem there is that it is hard to actually see the player! Perhaps make his suit a more rust orange, or a brighter green? That would solve that problem, and make it keep the (very nice) imposing size and vastness of the deep. You could also just cut a bit off the edges, that would help greatly.
I think my design process from here is going to be based around cool items/powerups to collect, and fabricating a level based on those. So far there is the obvious jump-pack thing that lets you jump higher, and I am pretty much set on a harpoon-gun which will let yo pass giant squids. An item that increases your oxygen capacity is pretty much a given as well. Am also thinking about giving the player a number of floating "lamps" that he can use to illuminate the darkness, and mark off explored areas.
I like the idea of floating lamps, and designing levels based on power-ups! Perhaps you could have an 'air dasher', which lets you launch yourself in a direction via a stream of bubbles, and a 'oxygen destroyer', which is like
I need to come up with cool areas to make exploration worthwhile. Probably start with doing cool riffs on the standard undersea places: haunted shipwreck, coral reef area, open, sandy bottom, maybe some kind of creepy abandoned installation or submersible?
Coral reef, sandy bottom, shipwreck, abandoned installation, submarine graveyard covered in mines and torpedoes, a huge skeleton of some ancient whale, an undersea cavern system, a volcanic area covered in mineral plumes and lava, a part of the sea covered in ice floes and glaciers... lots of amazing ideas, under the sea!