Board Thread:Game Discussion/@comment-9524180-20130607102437/@comment-10541743-20130610080707

Yes, much more difficult.

Boss difficulty in order (for this episode): Sludge, Snarl, Slug, Swoop, Grimlock.

Each boss can be levels 1-6. Level 5 sludge is weaker than level 1 snarl. Level 5 snarl is weaker than level 1 slug etc. However theres a big difference at level 6 which makes them much more difficult than their level 5 counterparts.