What are a few games that feature both Sonic and Mario?

Some video games that feature both Sonic the Hedgehog and Mario are "Mario & Sonic at the Olympic Games," "Mario & Sonic at the Sochi 2014 Winter Olympic Games," and "Super Smash Bros. for Wii U." These games are exclusively for Nintendo Wii and Wii U consoles.

There is also a "Super Smash Bros." game for the Nintendo 3DS console that features both characters. The "Super Smash Bros." games feature a wide cast of characters from old and new Nintendo and Sega games as they face off in arena-style battles. The Mario and Sonic Olympic games series pits the two iconic characters against each other in a large selection of Olympic sporting events including track, swimming, downhill skiing, ice hockey and speed skating.