A skin of Magolor from the Kirby series of games! This specific design is used in "Team Kirby Clash Deluxe", "Super Kirby Clash", "Kirby's Return to Dream Land Deluxe" and "Magolor Epilogue: The Interdimensional Traveler".

Magolor appears in many games, including Kirby's Return to Dream Land, Kirby's Dream Collection Special Edition, Dedede's Drum Dash Deluxe, Team Kirby Clash Deluxe, Kirby Star Allies, Super Kirby Clash, Kirby Fighters 2, Kirby's Return to Dream Land Deluxe, and more!
There is also a lot of merchandise of him and he is a particularly popular character in Japan.