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.
Top Gun is a portable electronic handheld game developed and published by Konami in 1989 in North America. It was based on the 1986 film of the same name.