bgpanel command added; same as bglayer, but uses transparency
bglayer optimizations, max_bglayers upped to 100
Updated Dreamcast requirements
Disable riseattack if the player is still bouncing.
Fix a memory leaking problem.
Print some runtime error message.
Shutdown if the script file is not found in model txt.
Print the function name is a system script function return an error.
Fix a mistake in openbor_loadsample.