Uncharted Waters, normally released as Daikoukai Jidai (大航海時代?), is a popular Japanese video game series produced by Koei under its "Rekoeition" brand. It is a simulation and role-playing video game series dealing with sailing and trading, themed around the Age of Discovery. In the games, the player takes up the role of a captain (or commodore in some translations) and manages a seagoing fleet to participate in trades, privateering, treasure hunting, exploration, and plain piracy. Even though the series is largely open-ended, there is still a loose plot which requires the player to follow certain paths, and deviating from these paths may stall the progress of the story. In East Asia, the series has a large cult following, but it has not received much recognition outside the region. However, it has been compared to the earlier Sid Meier's Pirates! in gameplay and theme.

Vector the Crocodile in Sonic the Hedgehog (aka Vector in Sonic 1) is a hack of Sonic 1 by E-122-Psi, starring Vector the Crocodile as the playable character instead of the blue hedgehog. The game is modified to use Vector's sprites (edited from Knuckles Chaotix) in place of Sonic's, along with several modifications to the player's stats and abilities.The game was modified by Sonic Retro member E-122-Psi, with additional programming and coding by other members including MarkeyJester and flamewing.

Wardner (original Japanese title: Wardner no Mori) is a platform game released by Taito in 1987. The player controls a character named Dover through various forest game levels in an attempt to rescue his kidnapped girlfriend from the evil Wardner. The simple run and jump controls are supplemented with the ability to throw balls of fire. The player collects gold coins throughout the game; at the end of each level, the coins are exchangeable for extra abilities. The game was ported to the Famicom Disk System in 1988 in Japan. A 1990 port to Sega Mega Drive is titled Wardner no Mori Special in Japan. The North American version of the arcade game is alternately titled Pyros. The console game was never officially distributed in Europe, but the arcade game was commonplace.