Mega Upper

Mega Upper, known as Rock Upper (ロックアッパー) in Japan, is a move used by Mega Man in the fighting games in which he appeared -- Mega Man 2: The Power Fighters, Marvel vs. Capcom: Clash of Super Heroes, Marvel vs. Capcom 2: New Age of Heroes, and Super Smash Bros. for Nintendo 3DS / Wii U. It generally involves Mega Man covering his fist in blue or yellow energy, and leaping into the air as he performs a powerful spiraling uppercut. In all of its appearances, this attack can hit multiple times and launch foes into the air. His "Bad Box Art" rendition can use a similar move known as the Mega Uppercut in Street Fighter X Tekken.

Trivia

 * The Mega Upper is very similar to the Shoryuken, one of the signature moves of Ryu and Ken from the Street Fighter series.