My first video game ever was Alex Kidd in Miracle World for the Sega Master System. I have very vivid memories of sitting in my room as a toddler and watching my mom play it, and naturally I picked up the controller too. It's still one of my top three favorite games ever. <3
Also on that system, I had Double Dragon, Golden Axe, Altered Beast, Out Run, Shinobi, Maze Hunter 3D, Helicopter, Action Fighter, After Burner, and a couple shooting games that I had the gun controller for.