Egawa Suguru no Super League CD (江川卓のスーパーリーグCD) is a baseball game released as part of the Super League and a sequel to Pro Yakyuu Super League CD (?).
Dynamic Country Club is a 1991 arcade golf game by Sega released on Sega System 24 hardware. Both floppy disk-based and ROM board-based versions of the game exist. The game presents itself in a pseudo-3D setting a la T&E Soft golf games like Pebble Beach Golf Links where the screen slowly redraws itself at certain intervals in your swing.
A game with the same name for the Sega Mega-CD was produced, but only released in Japan. Whether or not this is the same game is unknown.
Wondermega Collection is a sample disc bundled with Japanese Wondermega consoles. It contains four CD+G karaoke songs and Battle Fighter, Flicky, Pyramid Magic and Quiz Scramble as playable games.
Dungeon Explorer is an action RPG developed by Westone and Hudson Soft and released for the Sega Mega-CD in 1995.
Despite sharing a name, the Mega-CD Dungeon Explorer is not a port of an earlier Dungeon Explorer, released for the PC Engine in 1989. While related, the Mega-CD game is designed to play more like Atari Games's Gauntlet, and is exclusive to Sega's system.