Sudoku

Blazing Rangers is an original one-screen action game for NES-compatible hardware, realized in the style of '80s arcade games. The setting and goal is easily explained: You are a firefighter with the task to rescue all kids from a dangerous fire site. Equipped with a water hose, you can choose between two characters and will fight an ever-growing wall of fire and a plethora of dangerous enemies to open up the way and save the children. It's also important not to dawdle around - they might get burned if you don't take some risks and hurry to their rescue!

Magic Jewelry is a tile-matching puzzle video game for the NES. It was programmed by Hwang Shinwei in Taiwan and released in 1990 by RCM, without a license from Nintendo.

Tengen, an Atari label, released an unlicensed version of Tetris for the Nintendo Entertainment System. After they lost a lawsuit to Nintendo, which acquired the rights from Russia to port the game to home consoles (they already had the handheld consoles rights), Tengen had to destroy every spare cartridge unsold at the time. The Tengen game featured a two-player simultaneous mode not available in Nintendo's version

You have 8 hours to prevent Elvin, a psychotic genius from destroying the world in this sequel to the highly successful Impossible Mission. Enter Elvin's tower fortress, avoid his robots, assemble security combinations for each tower, recover musical sequences and tie them together into a full melody to reach Elvin's central control room.

Ishido is a solitaire board game played with tiles, similar to Shanghai. The objective is to place all of the tiles onto the board and obtain the highest possible score by following specific rules of play. There are ways to play that can dramatically increase the score, which makes the game very strategic in nature. Additionally, when desired, the player can get an oracle reading by asking a question, which is answered when the player makes a very elegant play (four-way match). The Sega Genesis/Mega Drive port was infamously at the center of the Sega v. Accolade trial of October 31, 1991, Sega filed suit against Accolade in the United States District Court on charges of trademark infringement and unfair competition. Sega argued that Accolade had infringed upon its copyrights because Accolade's games contained Sega's material through reverse engineering of Sega's tech in order to avoid paying license fees. Ultimately, Accolade was ruled in violation on April 3, 1992, when Judge Caulfield ruled in favor of Sega and issued an injunction prohibiting future sales by Accolade of Genesis-compatible games incorporating the Sega message or using the results of the reverse engineering. Almost a week later, Accolade was also required by the court to recall all of their Genesis-compatible games.

Released in 1993 on Sega Mega Drive/Genesis, by Color Dreams.

In Shockwave you need to retrieve powerful crystals left behind by the Tarian race. The Rastons are after the crystals also, which places a short time limit on the mission. You are armed only with a spacesuit and a shockwave pistol. To retrieve the crystals, you will need to find your way through numerous mazes. Blocks in the maze can be moved with the shockwave pistol. When you hit a block with the pistol, this will move blocks adjacent to the block hit rather than the block itself. If numerous blocks are lined up, the shockwave will continue to travel through the blocks until the path is clear and a block can be moved. Some blocks are indestructable and immovable, while others can be moved, and some completely destroyed. Teleportation doors, force fields and other special items can be found in some mazes. To complete most of the levels the blocks will need to be moved about in the proper order to avoid leaving a critical path permanently blocked. If you do get stuck, there is an option to restart a maze (this feature becomes more and more useful as the game progresses.) Wandering about many of the levels are FireStars which will weaken your spacesuit and eventually destroy it. Each level has a time limit in which to solve the maze and retrieve all of the crystals.

The game is only available through the company's website in a physical cartridge for the listed platforms. "Become a diety with a very bad hair day in this action puzzler. The Titans have escaped their eternal prisons and transformed Artemiza, a young goddess, into a gorgon. Now she must petrify enemies, create paths, and dodge traps in her battle to save Mount Olympus.