Sonic the Hedgehog platforming of the main levels. The 16-bit "Sonic the Hedgehog " consisted of a giant rotating maze, which many considered a major technical achievement. The most common special stages, however, were segments with the character running through a long tunnel to collect certain items. 3D "collect item" levels, as in "Sonic 3" and "Sonic & Knuckles", used the same perspective but had Sonic collecting all the blue-colored orbs on the surface of a giant sphere. Finally, "Sonic Advance 2" employed a 3D ring-collecting stage, and "Sonic Chaos" ("Sonic and Tails" in Japan) used a variety of gimmicks for its levels.
Sonic the Hedgehog the exclusivity agreement. At the end of 2014, Sonic also returned as a fighter in both installments of "Super Smash Bros. for Nintendo 3DS and Wii U". Sonic was added as a playable character in the Lego video game, "Lego Dimensions", in November 2016; he is distributed via a "Level Pack" that includes an additional Sonic the Hedgehog-themed level and vehicles. Two "Sonic" games were revealed at the Sonic 25th Anniversary Event during San Diego Comic-Con 2016. The first game was "Sonic Mania", which emulates the gameplay and visuals of the original Sega Genesis games, and was released in August