Alex Kidd in the Enchanted Castle (アレックスキッド 天空魔城, Arekkusu Kiddo Tenkū Majō?) is a side-scrolling platform game developed and published by Sega for the Sega Genesis video game console. The game was released in Japan in February 1989, in the U.S. in January 1990 and in Europe on November 1990. It is the only 16-bit platform game starring Alex Kidd, and the fifth game in the Alex Kidd series of video games. Alex Kidd in the Enchanted Castle follows Alex as he fights his way through the fictional planet Paperock in search of his long-lost father, King Thor. Alex has access to several items and vehicles that help him complete his quest, including a motorbike, pedicopter, and pogo stick, which each give him unique abilities. While traveling through eleven worlds, Alex must defeat several opponents in rock-paper-scissors before finally finding King Thor.

Amy Rose in Sonic the Hedgehog 2 (aka Amy in Sonic 2) is a character swap hack Sonic the Hedgehog 2 for the Sega Mega Drive/Genesis, with character Amy Rose as playable character in place of Sonic the Hedgehog. The game's sprites (modified from Sonic CD) use Amy's initial design prior to Sonic Adventure.The game was modified by Sonic Retro member E-122-Psi, with additional programming and coding by other members including MarkeyJester, MainMemory, FraGag, Selbi and Hayate.

Another World, also known as Out of This World in North America and Outer World (アウターワールド Autā Wārudo?) in Japan, is a 1991 cinematic platformer action-adventure game designed by Éric Chahi for Delphine Software. The game tells a story of Lester, a young scientist who, as a result of an experiment gone wrong, finds himself in a dangerous alien world where he is forced to fight for his survival. Originally developed for the Amiga and Atari ST and later released for the Apple IIGS and DOS platforms, the game was widely ported to other contemporary systems. Later efforts resulted in several game engine recreations for the game that permitted it to run on modern computers, consoles and mobile phones. In 2006, Chahi independently released a 15th Anniversary Edition for Windows which allowed the game to be played on modern computers with original or enhanced visuals; following up in 2011 for its 20th anniversary, ports of the game were prepared for iOS and Android based devices. Another World was highly innovative in its use of cinematic effects in both real-time and cutscenes, which granted the game praise amongst critics and commercial success. It also influenced a number of other video games and designers.