This is a level which uses than concept: when boss was defeat and when you will exit from level, in next time boss will not appear:
http://talkhaus.raocow.com/viewtopic.ph ... 79#p274679
(Also background changes into night and quick pipe between entrance and exit will appear too)
[also to play it you will need LunaLUA >=0.6]
bossedit8 told right:
- Create layer "boss" and switch your boss into them
- Create event "hide boss" which hides than layer
- Put the star (SMW-star) in another room and set "Death" event slot with "hide boss" event.
So, when you will defeat boss and when you take a star, in next time a boss will don't appear