While I actually have a little more childhood nostalgia for my original Nintendo system, the Sega Genesis system I eventually received one Christmas is tied to a lot of fond memories I have of being an early teen, especially memories involving my dad. He got one too so we could play together when my sister and I would go visit him in the summers, and we had a blast. When visiting him recently, we found that old Sega in storage and I played the devil out of it. Here are the three games that—even after all these years—are still an amazing way to kill a rainy afternoon.