4. You Could Catch Mew In Pokémon
https://www.youtube.com/watch?v=2QGILo0SZyI Unbelievably, in researching this article it looks like someone finally figured out a way to catch Mew in the original versions of Pokémon on the Game Boy only a few years ago. Initially this entry was going to be included as a complete mystery, but the opposite is so awesome you need to know about it regardless. All this rare Mew business used to be heard about on the schoolyard, yet even the tallest tale-teller could actually show off the creature themselves - unless they'd gone out to one of Nintendo's travelling show events, taken their data transfer cable and obtained Mew as a specific gift from another trainer. However, user MrRhexx shown above proves gamers really are geniuses when the impetus to discover something is right - eventually cracking the otherwise mysterious nature of Mew's existence on the cartridge, and showing that this might just be the first example of what would now be referred to as 'on disc DLC' Pretty incredible.