The Virtual Boy is but a quick blip in Nintendo's history, but it's certainly a sore spot. The system stumbled out of the gate, and was yanked quicker than any other Nintendo hardware out there. What came out at launch was pretty much the bulk of what the system saw, as it was dead in the water soon thereafter.
Ever wonder what could have been for the platform? If it ever found its legs and got some momentum going, it seems that Game Freak would have cooked up something. In an interview with Game Informer, Game Freak's Junichi Masuda said that the studio thought about a Virtual Boy game, but it never came to fruition. The title would have been a new IP, but according to Masuda, "by the time we were really getting around to it, the system was on the way out."
It sounds like Masuda would have really liked to create something for the Virtual Boy, as he said that he "really liked" the platform.