Does Air Man have a notable Japanese fanbase?
In the US he's no more relevant than any other boss from Megaman 2. But Japanese accounts on twitter seemed to react strongely to his inclusion in the Japanese Mcdonalds commercial.
Not the first time Rockman and McDonalds Japan have collaborated.
Rockman Exe Happy Set from 2005 and Ryūsei no Rokman "changing card set" from 2006 to name a few.