Oh wow. The very first game I ever played? I'm pretty sure it was Pokemon or the Little Mermaid for Game Boy color. I remember receiving a Game Boy Color along with a Pokemon and so did my sister. My sister, fortunately, didn't like playing Game Boy Color so I was able to keep her game. She had gotten Pokemon Blue, while I had Pokemon Red.

So I guess I got lucky that my sister never wanted to play hers. XD