Quint

Quint (クイント) is Mega Man from a peaceful future that was modified by Dr. Wily to fight against Mega Man in the present in Mega Man II. His main weapon is Sakugarne, a digging robot that looks like a combination of a pogo-stick and jackhammer.

Contrary to popular belief, Quint is not a Mega Man Killer. He is often mistaken for one because he is an extra Wily stages boss from the Game Boy games like the Mega Man Killers (Enker, Punk and Ballade), and the four appear in the same stage in Mega Man V.

Quint should also be not be mistaken for Rockman Shadow from the game Rockman and Forte: Mirai Kara no Chousensha, who was created at the same time period as Quint and is similar to him, and uses a weapon similar to Sakugarne.

History
Tired of being defeated, Dr. Wily came with a new plot: He stole a experimental time travelling machine (named Time Skimmer in the American manual, and said to be from the Chronos Institute) to go to the future and capture Mega Man. The future was peaceful as Wily had reformed and Mega Man no longer needed weapons. Wily modified Mega Man into the fighting robot Quint and equipped him with Sakugarne. With Mega Man himself on his side, Wily believes he can't be defeated.

Mega Man fights against Quint during the events of Mega Man II, and Quint escapes after the battle. Mega Man faces him again inside the Wily Star in Mega Man V, but it's unknown if that's the original Quint or a copy, as several inactive copies of him and the Mega Man Killers can be seen in the Wily Star.

Quint also appeared as a card in the game RockBoard, where he uses Sakugarne to modify one of the opponent's buildings, and is mentioned in Rockman and Forte: Mirai Kara no Chousensha.

Strategy
Quint attacks with Sakugarne, a jackhammer-type robot that turns ground fragments it digs up into deadly projectiles.

Trivia

 * "Quint" is a play off of the musical term "Quintet".
 * In the American and European instruction manuals, it's said Wily traveled 37.426 years into the future (mid-21st century) with the Time Skipper, where Mega Man was living in peace. However, Mega Man's kidnapping and taking back to the "present" could be an explanation for why he is absent in the future (if Quint is, in fact, Mega Man). The time Wily traveled is sometimes confused as 37 years or 37426 years because of the decimal separator, but the latter is inaccurate as it's beyond later series like Mega Man X, and it's unlikely Mega Man would still be active after this time.