Pokemon Pinball (USA) ROM

At first glance, you'd probably say, "It's just pinball with Pokemon attached to it." And you'd mainly be right. What sets this apart from other pinball games is that it was one of the first cartridges on the Gameboy Color to utilize a rumble feature. It also had an impressive quick save feature that preserved not only your score and accumulations, but also the exact position, speed, and trajectory of the ball. In short, saving while the ball is plummeting toward the out zone is NOT a good idea.
In addition, there are certain conditions to be met before you can capture or evolve your pokemon, and after either event, you're rewarded with a bonus roulette or a bonus game. 
Both the red and blue boards are exclusive from one another in terms of terrain, pokemon, and even bonus stages.
Although meant for Pokemaniacs, this game is a pretty good way to spend a lazy afternoon.