And I can do this without groups? I still have a bug, that the green enemys should take two shots before dying, but they don`t.

I have an if-statement like this:

if(bomb hit green enemy == TYPE 4)
- remove bomb
- change green enemy to blue (switch skin and set TYPE 3)

if(bomb hit blue enemy == TYPE 3)
- remove bomb
- remove enemy

TYPE is a skill-define wich I use in a way I should have used groups. I tried it in different variants. But enemy switches direktly from TYPE 4 to TYPE 3, when it got hit.