Slap Fight MD

Slap Fight (known as Alcon in North America) is a shoot 'em up game, originally developed by Toaplan (revived as TATSUJIN) and published by Taito in 1986 for Arcade machines. In this game, players can drive a spaceship that can destroy ground vehicles such as tanks. In some areas, a boss must be fought alongside the area. The game has about 50 areas, divided into 5 sections. There's no actual storyline in the game, as both regions differ from each other.

According to a prototype version of the game, Toaplan was meant to self-publish a Genesis port of Slap Fight around 1992. This version was being developed by MNM Software (currently known as Mindware) with a new gameplay mode and arranged music by Yuzo Koshiro. However, due to financial difficulties at Toaplan, the company was forced to handle the publishing to another company, which was Tengen Ltd. (the Japanese branch of Tengen). Tengen Ltd. brought Slap Fight MD to the Sega Genesis in 1993, only in Japan.

The Genesis version was re-released as a pre-installed game in the Japanese and Asian versions of Mega Drive Mini by Sega in 2019. This new re-release omits all in-game mentions of Tengen, as well as their instruction manual being re-written almost from the scratch due to Tengen Ltd.'s trait of including internal jokes in their instruction manuals, which was carried over when the company was renamed into Time Warner Interactive.