Cave Fillet

Cave Fillet is the last stage in Sea of Tuna, sub-chapter 7.

Beginning
The Enemy's Castle will spawn 2 Those Guys

Boss Shockwave
After taking a few hits, the boss will appear (Teacher Bun Bun (Floating) and Dark Emperor Nyandam (Red). One Horn (Red) and Pigge (Red) will be spawned and respawn after being defeated.

Strategies
This level requires some luck, in particular if you don't have any True Forms/Crazed Units. Delinquent Cat (Super Rare Cat) can be great help, as he can slow down the movement of Teacher Bun Bun. More meatshields also help as this level, when close to your base.

If you want to use sufficient long-range dealers, constant waves meatshileds are crucial. If the constant wave of meatshileds are not constant, Dark Emperor NyanDam can kill all of your long-range dealers in one hit.

Even when Teach Bun Bun is dead, do not lose your tension, as the Dark Emperor Nyandam here is also very strong.

Teacher Bun bun here has a hp of 599994 and an attack power of 18000. Dark Emperor Nyandam has a hp of 399996 (The Same as Teacher Bun Bun in the Moon (3rd chapter)) and an attack power of ~12000

Reference

 * http://battlecats.spica-net.com/chaplegend/s07.html