Green Mario
To possibly spare you a nightmare, I will use some casual talk here.
So, one day, I thought "what the heck" and played some Luigi's Mansion Dark Moon. The main reason I stopped playing this game is because of the first boss, which I had a lot of trouble taking down. So, the first thing I did was go into its respective level. Might as well.
To my surprise, the boss's appearance had... aged. Maybe it was some sort of special version that added atmosphere based on the 3DS's internal clock, but I doubt Nintendo could program something like that into everything. Plus, this thing was dripping darkened slime and blood or something.
(Work in progress. This trollpasta will be completed in due time.)