Where can I play games online?

I saw my dad playing Mario and Pokemon on the computer and it was a website, he doesn't remember the website but does anyone know where I can play mario or pokemon online? And do you know of any other games like kingdom heart maybe? Or anything like that?Where can I play games online?
Some classic video games such as Mario and Sonic have an unofficial 'flash' version, which can be found on various websites, including Miniclip and AddictingGames.

Mario - http://www.onemorelevel.com/game/super_m鈥?/a>

Sonic - http://www.onemorelevel.com/game/flash_s鈥?/a>

Pokemon - (cannot find a link. will update answer once link is found)

-Wiiplay_dsWhere can I play games online?
You can check for some of the Mario and Pok茅mon games on Vizzed:

http://www.vizzed.com/vizzedboard/retro/Index.php?ref=47040

I'm not sure if they have Kingdom Hearts.Where can I play games online?
Hey y dont u play social mutiplayr games online with people



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