!

Nevertheless, there is no direct way of getting a full listing, because your disassembler does not understand the mapping method. The games really consist of 8KB pages, which can be seperately addressed, although Konami had a tendency to use them more in sets of three:
4000 - 5FFF : page 0
6000 - BFFF : for example: page 1,2,3; or 4,5,6, etc...
Anyway, a call to 6003 can mean something else each time, depending on the selected page set, which confuses your disassembler.

There are many efficient ways to get to where you want, because most Konami roms use a very similar coding style, and probably quite some people here are familiar with it. I understand you want to be the first to find it, but if you give us vague directions, we'll give you vague hints in return