A Tiger Electronics' watch version of Castlevania II: Simon's Quest. The gameplay barely resembles the original from Simon's Quest, so it could be considered a separate game. It was preceded by a more in-depth version in LCD handheld format. It was released in 1988.
The LCD version of OutRun is a watered-down version of the arcade game OutRun created by Tiger Electronics. Two versions were created - a handheld version, and a large tabletop unit, although the game itself is presumed to be identical.
OutRun is similar to several other LCD games on the market - you simply drive forward and try to avoid traffic. There is both a high and low gear, much like the arcade version.
Super Mario Bros. is an LCD game watch based off of the NES original. It was released in 1989 as the first of four Mario Nelsonic Game Watches. The game received a direct sequel in the Super Mario Bros. 3 game watch.
The Brick Game is a series of models of handheld electronic games. They are usually called "x" games in 1, with X usually being a high number, which are actually game modes, not different games. The games are usually clones of arcade games to the LCD screen, like Tetris, Breakout, Pong, Battle City and others.
They are very cheap alternatives for handheld gaming, making them prominent in underdeveloped countries.
Explorers of Space is a portable electronic LCD game released by Elektronika in 1989. The game is a clone of Nintendo's Game & Watch handheld LCD game Egg (1981) but set in space.
The Legend of Zelda Game Watch, referred to as The Legend of Zelda 8321 in the instruction manual, is a combined game and wristwatch released by Nelsonic Industries.