The game is a mix of puzzles and action. The action involves you dodging various enemies, such as dogs, ghosts, bats, etc, and avoiding the many traps in the dungeons of the castle.
You only have a limited amount of energy, and if you lose all of it by touching enemies or traps, you lose a life. If you lose all your lives you lose the game.
The puzzles, which are mostly fairly simple, involve both the use of objects, such as money to bribe a guard, and switches that perform various functions, such as deactivating traps.
Keys are very important, as they are needed to unlock your shipmates' cells. Some cells are protected by guards, who must be tempted away somehow to get to the cells they are guarding.
Drachen von Laas tells the story of two young friends who are bored with their everyday life in the medieval fantasy world of Laas. They decide to leave their little village and seek adventures. Adventures they find when they are asked to kill two mighty dragons that rampage the area of a far-away city.
Hametsu no Mars is a Japanese romantic adventure game developed by Idea Factory's IF Mate brand. It was released for Playstation 2 on May 26, 2005. An OVA by King Records was released on July 6, 2005.