1. need to be used in a network environment
2. In the game you can use voice: "left", "right", "up", "down" to control the pet (dragon)
You can also use the "jump" command to complete the jump, with "fire" command to eliminate obstacles.
3. In every game, pet (dragon) has three lives (three hearts), when the dragon crash an obstacle, minus life. Until the value of life is zero, the game is over.
4. Pet (Dragon) has three chance(Fire) to eliminate obstacles.