A while back I decided that simple square blocks were not going to be enough for this game, so I added 4 slope shapes. It's not a huge change or anything, but it makes things a little less blocky and look a bit better.

NOTE: these are cropped shots of a surface area with no objects in them so it's easier to see the block layers.You can see part of an acid wasteland background though. Also ignore the 2 little status bars in the no slopes shot, I forgot to turn off the player status bars. :)

With slopes (going with) - 800x434, 124KB

Without slopes (not going with) - 800x434, 129KB