Devil May Cry 3 help

[CrypticOne]

Right now I'm at Level 18, where you have to fight all the bosses all over and I need help. I can take 4 of them out, but then I run outta Vital Stars and all my other items, can anyone help me?

 

[taskmaster]

Try facing the bosses from the easiest one to the hardest. That's how I did it after dying multiple times.