Squid-based

Like a squid, she has ten fully controllable tentacles that protrude from the top of her head like hair. These tentacles are very strong, incredibly dexterous, and can be controlled effortlessly by Ika. They can also stretch a huge range and have a variety of offensive capabilities. As such, Ika essentially has ten extra limbs, and can use them to master a range of human activities, including several sports, drumming and art.

The squid ink she spews from her mouth is noted to be of high-quality taste, and is used for the squid ink spaghetti dish at the Lemon Beach House. Her mantle-shaped hat contains her fins, which she apparently never had to use while underwater, but when she learns how to control them, she usually uses them to deliver physical blows. This "hat" is also an extension to Ika's head - attempts to remove the hat would kill Ika, however, the pain caused by a single tear can help recover from amnesia.

Due to her small stature, she can adjust her weight in order to pick up larger objects without being toppled over. Adjusting the bands on her wrists allows her to go from anywhere between 0.0005kg to 20,000kg in an instant. She can float on an updraft at her lightest, allowing her to take "flight". She can also emit light from her body like a firefly squid, however, if she moves while illuminated, she takes on a different appearance.

All of her squid-based abilities are prone to atrophy, which can occur suddenly after a prolonged period outside of water.

• In the manga, Ika recovers them after being faced with her natural predators, real or not.
• In the anime, Ika recovers them due to a desire to save someone who was drowning, in this case, Eiko Aizawa.

Human-based

Ika is also adept at learning new languages, such as English after a short lesson from Cindy Campbell. She can also solve advanced mathematics problems, although the way she understands such problems is unintelligible to humans.