That's good to hear. Those crabs were pretty bad when I first got to the layer, but after a little leveling, and upgrading equipment, the go down like the enemies before them.
Prinny has alot more HP than he should with that much back up!
If you think that one was bad..........SPOILER.................
The second fight with Etna is rough. She brings like 5 prinny's with her, and she has over 3,000 HP.
If you get in any binds, just remember, "Power leveling gets #^@% done! Ha