From the 8-bit: A bike racing game where you can perform crazy stunts and make your own tracks.

From the 16-bit: The second Blue Bomber's third outing that features three power-ups per selectable level and introduces Zero as a playable character.

Obviously, I have a preference here, but I'll just leave the voting to those who feel inclined to do so.

And it's a tie. That cinches it, there's a pattern here.