1: Does the game take place in the year 200X or 20XX?
A: As mentioned previously, the best estimate for the exact year that the original Mega Man takes place (which is extrapolated from information in Rockman Perfect Memories), is the year 2008. This game takes place before Mega Man 2, which mentions the year 200X in its official story. However, Mega Man: Powered-Up! states the year in its official story as the year 20XX, but this is retro-connectivity (mainly because the game was made in 2006, or during the 200X time period). However, 20XX can refer to any date between the year 2000 and 2099, which still includes 2008, so people falsely assume that it must be a year such as 2010, 2025, etc.
2: What are Time Man and Oil Man's serial numbers?
A: The original Doctor Right Series only had nine robots that were numbered- Proto Man, Rock, Roll, and the six industrial robots (DRN. 000 - 008). However, Mega Man: Powered Up! added an additional two industrial robots into the storyline for retcon purposes (because all subsequent games had eight robot masters), and although their serial numbers are not given, most people have assigned Time Man as DRN. 009 and Oil Man as DRN. 010. However, this conflicts with the original numbering system, because Metal Man is listed as DWN. 009 and Air Man is listed as DWN. 010 (both from Mega Man 2). As such, some list Time Man and Oil Man as DRN. 009? and DRN. 010? to denote this numerical conflict.