Operation method: Players can use the direction keys on the keyboard to control the movement of characters, the WASD key to control the movement of another character, or they can use the mouse to click on the screen to control the character.

Character characteristics: The Fire Boy can walk on magma and flames, but cannot come into contact with water; Water girls can swim, but cannot touch flames or magma.

Level Design: Each level has a different layout and difficulty, and players need to complete tasks by pushing boxes, pressing switches, jumping, and avoiding obstacles.

Cooperation mechanism: Fire Boy and Water Girl need to cooperate with each other to pass the level. For example, the Fire Boy can light the red switch, while the Water Girl can turn on the blue switch. When both switches are opened simultaneously, the door will open and the character can pass through.

Time limit: Players need to complete levels within the specified time, otherwise the game will fail.

Star Collection: In each level, there are also several scattered stars that players need to collect to earn additional points.