jaj it works

next questions: about bosses:

1. Is there a way to put well lets say, 3 bosses at the same time in a level. It is possible i know but i want to kill them all 3 before finished. If you finish 1 of the 3 you are already done and you go to next level.

2. Is there a way to kill a boss without going to next level.

3. Is it possible to put in 5 devans + devan robot without the robot boss? And how do you do it.