Board Thread:Questions and Answers/@comment-32436884-20170713095949/@comment-26042064-20170726054450

Viking Cat (especially the true form) kills Bores fast, you will have to stack a bit though. Plus Witch and Pirate, definitely helps too.

Hmm, without using ubers I haven't tried it on most heavy stages but for 4 stars challenge it can be done upto SoL 6 for now. I'm challenging Sea of Tuna for now...I'm aiming upto Castle of Fish for now but good luck with that. +_+