This is probably a really stupid idea, and has been used hundreds of times before...



But still, for an MP level:



Have it so that you can't get back to the MP start. Then put a trigger event there that enables a coin or a powerup (for example) to be dropped down somewhere on the level (making a platform disappear momentarily or something)...



So... when anyone gets roasted, you have to run get the object....



Hmm... looking through that, maybe it would be impossible... I dunno, is that helpful...?