Robodemons

Robodemons is a side-scrolling action game released by Color Dreams for the Nintendo Entertainment System in 1990. In the game, the evil demon king Kull has invented a machine which can transplant the souls of demons into machines. These robodemons are taking over the Earth; players take on the role of a great warrior tasked with the goal of penetrating the seven levels of hades, confronting Kull, and destroying his robodemon machine.

Each of the seven stages in Robodemons consists of two parts: The first section of each level has the player flying with and given a goal to achieve (such as destroy a particular demon), while the second part is in a side-scrolling platform game style where players are walking and can jump to avoid opponents or get around obstacles. In either part, numerous opponents, often in the form of skeletons and demons, constantly attack. For defense, players are equipped with a magical boomerang which can be used to destroy enemies. Players only have one boomerang, so they will need to wait for it to return before it can be thrown again.

There are a total of seven levels that need to be completed as follows:

1. Level of Bone: Find the key to the door to escape this level.
2. Level of Flesh:: Find the key to exit, however the floor is covered in acid bile so players must stay on the platforms and avoid landing on the ground.
3. Level of Fire: Find the key to exit while avoiding the flaming pools. Moving platforms provide the only safe passage across some areas.
4. Condemned Souls: Free the spirits who are held captive. In order to exit to the next level, all spirits must be found and saved.
5. Level of the Demon: The main level where demons live. A statue of the demon Kull is found at the end guarding a key to the next level.
6. The Robodemon Factory: This machine is the source of the robodemons and must be destroyed to continue.
7. Palace of the Demon Kull: The final showdown with Kull; this powerful demon must be destroyed to complete the quest.

Throughout each of the level, players may encounter different types of doors that need to be opened before they can continue. Locked doors require a key to open; the keys are usually located elsewhere in the level so players may need to search or backtrack before they can open the door. Magical doors in some levels require players to complete a task before they can be opened (e.g., the robodemon machine needs to be destroyed before players can continue to the next area). Players begin the game with a limited number of lives; for each life, energy is limited and depleted by contact with demons, projectiles, and other dangers. There are also some items in the game that are even more dangerous (such as acid on the ground) and will cause instant death instead of simply depleting energy. The game ends when players have lost all of their reserve lives.