public _midboss_active, _midboss_invalidate
public _midboss_update, _midboss_update_func
public _midboss_render, _midboss_render_func

_midboss_active	db ?
	evendata
_midboss_invalidate	dw ?
_midboss_update	dd ?
_midboss_render	dw ?
_midboss_update_func	dd ?
_midboss_render_func	dw ?