Battletoads and Double Dragon

Beat'em up game about battle toads alongside their dragon brethren. One of the best, if not the best, game to play with a friend. A plethora of enemies to roll into the ground, both literally and figuratively; levels that not only take you through the story but also allow you to interact with the interior; colourful bosses - each of which will add to your enjoyment. A port of the NES game of the same name.