Sonic Wings Assault (Japan) is a fan-made ROM hack, likely based on a Nintendo 64 game, which is not officially released by any company. It features Sonic and possibly has a flight element, given the 'Wings Assault' name. It was created by ROM hackers, not Sega or Nintendo. Gameplay would likely involve flight mechanics and/or aerial combat, adjusted to fit the base game's environment. The game's distribution would be within online communities dedicated to ROM hacking.

Sonic Wings Assault (Japan)

Sonic in Mario's Mind 1.1