I was probably one of the few kids who went online back then, and there was site after site with doctored screenshots of upcoming Pokemon in the 2nd generation. I believed those pictures and would show them to friends.
Of course with all the Pokemon ROM-hacking nowadays, you could probably easily change those static Pokemon sprites and put whatever simple monochrome pixel-art you want.
...Oh my gosh. I could totally add
Pikablu and
Yoshi into the games. I could finally correct the lies that EGM told me when I was young. VINDICATION!