I'm not exactly sure how to enable him. He's there, and all, but I can't get the sprite and logic for him to show up. I only know how to re-order the BG screens. At $3d00, there are the following screens: 01, 02, 03, 04, 05, 06, 05. The first 05 entry is the 'end of level marker', which is why you can get to him. The 'double posts' screen is 05 (it has a foreground post), which makes sense because he's so big he needs a cleared area. He's actually setup to work with the dynamic tiles, which makes the BG behind him scroll as another layer. His screen, 06, followed by another 05 screen after him. There are multiple control variables, and I can extend the length of the 'area', but there's another variable (end of level?) that keeps getting in the way. I can't seem to figure this one out. If I could move that, along with the length of the stage var, then the game would probably load him correctly.
Apparently, the BG map data and the foreground stuffs (including enemies and game logic), don't use the same map number system/whatever. I haven't figured out. But fun side is, you can see how the sub-level is laid out and what 'rooms' aren't normally accessible or hidden.
Note as cool, but I found this (a hidden stage):
Translation for the bottom part?