Huh! There's no definition for Alex Kidd!!! Well there must be.
Alex Kidd is a series of platformers made by SEGA. Some say Alex Kidd was the unofficial SEGA mascot before sonic.
Alex Kidd is a monkey-boy. His games are Alex Kidd in Miricle world, which was really good, Alex Kidd in shinobi world, which played like shinobi, Alex Kidd the lost stars, Alex Kidd in high-tech world (which was shit) and Alex Kidd in the enchanted castle. There was also "Alex Kidd BMX"
Alex KIdd in the enchanted castle was the only Alex Kidd game for megadrive.