Camelle will spawn about a minute after Madam the Savannah.
The level is much easier with some anti-red cats, but don't focus entirely on them - the Bores in this level are only at 100% strength magnification. Almost all of the anti-red cats you bring along will be outranged by Camelle, if not by Madam the Savannah herself.
Sushi Cat will lower Bore's pushing power. If you have the true form, a couple Can Can Cats will make short work of Bore whenever he shows up.
Attackers with >300 range (namely King and Crazed Dragon) can take out the Madam. When she falls, Camelle can easily be wrecked by your horde.