King's Knight is a fantasy-themed top-downshooter where four heroes have to unite to defeat a dragon and rescue a princess. It was one of the first games published by Square Soft (now part of Square Enix). The game is based on Konami's Knightmare , which sold extremely well.
The first four stages involve powering up your characters as far as they can go, picking up shields and boots to increase defense and speed, swords to increase attack power, and spell icons that will be required for the final stage. You'll defeat monsters along the way, with most objects being destructible. The heroes are: Ray Jack, the Knight, Kaliva, the Wizard, Barusa, the Monster, and Toby, the Thief.
The goal is to keep all four heroes alive until the fifth and final stage. However, if one of them dies at certain points, the group cannot progress. You must work together with your party members to overcome challenges and defeat the enemy dragon.