Time travel

The Time Skimmer is the time machine that Dr. Wily used to travel to the future during the events of Mega Man II. The device is mentioned only in the USA and European manual of the game.

Before the events of Mega Man II, Dr. Wily learns of a top-secret project to create an experimental time-machine known as the Time Skimmer at the time-space research laboratory known as the Chronos Institute. He proceeds to steal it, originally planning to use it to change the past, Wily discovers the time machine had a serious flaw and could only travel into the future and back. Wily uses it to travel approximately 37.426 years in the future. While in the future, he experiments with the technology of the age and reprograms the future version of Mega Man, taking him back to his own time and renaming him Quint.

It's believed that a similar machine to the Time Skimmer was used by the antagonist of Rockman and Forte: Mirai Kara no Chousensha, Rockman Shadow.

Trivia

 * Chronos is a Greek personification of time.