JJ2's bosses' system very simply...even' there's 2 or more bosses you just
need kill only 1...

What about to make function in JJ2+: kill ALL bosses?

Some levels may have bugs such as devres' bosses(when fighting with devan some bilsy bosses inside the walls)...
but it may be very good for lvl such as XLMcave.j2l...

And I think It's should be optional function like /killoneboss on...
or /killallboss on... idk...


Well, I'm only giving ideas...To accept or refuse - it's your choice...