Man I really wish they'd make a great co-op game with sonic and shadow, that would be so cool!
I was thinking about that in bed all morning! i dont mean like mario and luigi on the GBA I mean like a proper full 3D sonic game where 1 player controls sonic and the other is shadow!
That'll be so cool!

I've already began coming up with ideas for a flash game for this, as its more than obvious sonic team arn't ever gonna do this! So what I've come up with so far, (Im thinking of maybe naming the game Sonic & Shadow chronicles) anyway one player controls sonic, and the other shadow (I guess, I dunno you'd have to co-op using the keyboard with a friend or something?)
And each character has their own unique abilities but can run at the same speeds, sonic can bounce to get to higher places and reach hidden switches and items that shadow can't reach, and shadow can use chaos sphere to make forcefields, security doors, barriers or robots malfunction!
They can each build up power to use their unique special attack, (like a team blast from sonic heroes or something) sonic does the light speed attack which homes in like crazy to all the enemies in sight, taking them out and shadow uses chaos blast which destroys everything in its path!

I know this seems near impossible to pull off in flash and in 3D would be impossible as I lack most basic programming skills, but Im willing to give it a shot, learn more actionscript, see where things take me! I think its a really good idea that shouldn't go to waste, I mean I at least wanna keep sonic's good flame alive even if Sonic team obviously doesn't (I swear the new staff they hired enjoy watching the company fail and get a kick out of it!)

Well Ok since I'm still talking, as the the idea, I was thinking maybe trying something new, Instead of Eggman always trying to take over the world, robot's everywhere I was thinking of an idea kinda similar to like, phantasy star universe (not that im stealing idea, I just found my idea similar to theirs in comparison)
An alien race has crash landed on the planet and is contaminating the wildlife, making it turn evil or something (I was thinking like maybe plants turning poisonous and rock monsters coming to life and wierd alien stuff?)
No Tails, No Knuckles, No Amy, No Eggman, Just Pure Sonic and Shadow gameplay! =D

Now as for the stages, Im still working on level concept ideas, only come up with names and stuff so far, I was thinking 8 stages in total, really big as its 2D (though im really hoping in the future 3D games would become better in flash!)

Stage.1 - Paradise Canyons (seaside hill type stage, kinda like the image below)
you have to fight these monsters made out of rocks (by the alien force) and use co-op action to activate switches/deactivate barriers, lets say your running really fast and come to a secret locked door, the switch is hidden up a high ledge, shadow can't reach it but sonic can use his bounce attack to get there!
Then you later find yourself surrounded by a barrier preventing your escape, shadow uses chaos sphere on the control pannel, causing it to malfunction!
Stage.2 - its a desert stage, haven't thought of a good name yet, all I got so far is landfield ruins or something mine, whatever (I'm open to suggestions?)
Stage.3 - Locus forest - cool tropical jungle full of high speed loops and turns but all these plant monsters coming to life
stage.4 - metropolis highway - futeristic city where this giant octopus creature is grabbing the hover cars and throwing them all over, imagine a large futeristic city under chaos!
stage.5 - aquatic laboratory - like an underwater dome reseach lab (not to do with Eggman) but the sea creatures have turned bad and its up to sonic and shadow to find the cause!
stage.6 - skyworks factory (open to suggestions for a better name?) - a large steelworks wario colloseum style factory with large metal moving platforms everywhere - real high tech!
stage.7 - Apollo ruins - like the sky ruins stage from shadow the hedgehog, loads of floating platforms high up in the sky, all old ancient flating ruins
stage.8 - cosmo station (again can't think of anything better right now) - its a space station, kinda similar to the space colony ark but this is where the alien monster responcible for all the chaos is nesting and sonic and shadow are determined to put a stop to it!
then there will be a final battle between super sonic/shadow and the giant alien monster!
No this has nothing to do with shadow the hedgehog or sonic adventure 2, the aliens are kinda like the seed from phantasy star universe, but I think this gameplay could work well, I mean look at sonic and the secret rings, Eggman wasn't the main villain there and it still worked out alright?

What do you guys think? =)