In Dragonfire, the player first tries to cross a bridge while dodging fire from an unseen dragon. Fire comes at two different heights: one much be jumped over and the other must be ducked under. If the player can cross the bridge he will then enter the castle. Inside the castle the player must run around collecting treasure while a dragon roams the bottom of the screen breathing fire. If all the treasure is collected a door will appear at the top of the screen that will take the player to the next level.
This same sequence repeats with each level getting more and more difficult.