I ran into some problems with the clouds. I extracted them using the GLIntercept thing.
The clouds are actually 4 128x36 tiles that can be assembled into a 128x128 tile. The problem is that those tiles repeat HORIZONTALLY ONLY. When playing the game the same clouds are visible all the time. So there literally aren't any graphics that vertically exceed the screen.
Here is a link to some samples.
http://www.screenshotmaps.com/Maps/castlevaniasotn-ps1/bkgsamples.htmSample 1) Custom 256x256 clouds repeated.
Sample 2) Actual 128x128 clouds repeated.
Sample 3) One row of custom clouds with a solid color background above that.
Well, for starters, those are some options we can discuss.
Sorry, I can't post any links yet. I just can't afford to "buy" that ability right now.