This dolphin is similar to Mr. Mole in part. She does long-distance attacks with shorter effective range (350~650, and Mr. Mole: 350~900), but inflicts higher damage (7500>4500). However, she has shorter trigger range than Mr. Mole (150<450).
This enemy has very fast movement speed (36) and lots of knockbacks (30 times), coupled with a Long Distance attack. This makes her a hybrid of Mr. Mole and Rain D.
Daughter. I reflect on the past that was too joking,
Now I am working seriously.
I did not arrive late last week only three times.
Due to its long distance ability, using a strong damage dealer with long range like Bahamut Cat won't work well. Only a few cats with range above 650 can outrange it.
The best strategy against dolphina is to use few or no meatshields and attackers with short range or short attack animation. Saber is ideal against dolphina, rarely attacked even when you constantly spawn meatshields. A. Bahamut , Li'l valkyrie , Maglev and Ramen work well without meatshields.
It is most preferable to use slow meatshields, but only if it can tank at least 2 hits. This stops dolphina's attack from being triggered too quickly, most notably like the strategy used to fight against Lord Gravey and Miss Haka. This gives your cat more time to deal damage to knock it back.
If it has support enemies such as Master A. and Rain D. like in "No Return Flights," it is best to either use mid-range cats with high health or spammable mid-range units so they can stack enough to prevent the dolphinas from ever attacking, which can quickly cripple a stack of cats. Wave attackers are also very effective.
Starred Alien version of Dolphina. Has very low attack damage, non-LD, low range, and a very slow attack rate, but has high health and a barrier of breaking point 15,000. Basically the enemy version of Zamboney Cat, deployed as a tank for more powerful enemies. First introduced in CotC Chapter 2 added in v7.2.