2000
Yes, infact Sonic has been in three games with Mario in them ( Super Smash Bros. Brawl, Mario and Sonic at the Olympic games, Mario and Sonic At the Winter Olympic Games) and one with Zelda and other characters such as Spyro and Snake and such.
yes THEY DO !!! IN brawl They also meet in super Mario bros. z. IT IS NOT A JOKE! WATCH IT! and there is a sevral movies called sonic vs Mario
yes sonic is in shadow the hedgehog you meet him on the way
Lsd
no
maybe if i create him
Olympic Games, Olympic Winter Games, and Super Smash Bros Brawl.
That would be Sonic the Hedgehog 2006 for the Xbox 360.
No, but its in Sonic X the cartoon.
Sonic met Tails first, then Knuckles.
It doesn't show so I think she met him some where.
No, he is only of the SEGA universe. anything else (spongebob, mario, ect.) does not involve him so therefore he dosent know about.