The Little Mermaid

The Little Mermaid is a video game was developed by Capcom for the NES and Game Boy, and published in 1991. It is a single player side-scrolling action game where you control Ariel on a quest to defeat the evil Ursula, the sea witch.

Plot
In Disney's The Little Mermaid for the NES, you play as Ariel. Ariel has already met Eric, and they plan to wed, but the sea-witch Ursula has taken control of the ocean! So Ariel (After explaining what's going on to Eric) becomes a mermaid once more and sets off to rescue the sea. The game takes place from a side view and Ariel (Swimming most of the time, but hopping around on the land occasionally) can shoot bubbles to trap her foes and can then throw them at each other. She can also dig through sand to find treasure and pick up sea shells to break chests open with. The treasure she finds in the sand is usually just bonus points, but the treasure you find in chests will increase your bubble's power and range.

Gameplay
The gameplay is similar to other Capcom games such as Chip 'n Dale Rescue Rangers and DuckTales in that Ariel shoots air bubbles from her tail that when they hit certain enemies, can be picked up and thrown at other enemies or bosses. Ariel can also collect icons scattered throughout the levels to restore health, gain extra lives, or increase the range/power of her air bubbles.