Levels
 

i was just thinking about a little option in level that like could be "Use Layers" and you can walk under a layer if it is above it instead of using webgifs and stuff...so if you use layers you can make your level a 3d environment and when you walk up stairs it would advance you to the next layer with your chericter...maybe something that edits layers like graalshop.exe where you press + and - to change the layers...jus a idea

One thing I cannot stand about the tileset: no down stairs.

up stairs can be used as down stairs too ;)