Someone has created a playable version of Super Mario Bros within Counterstrike, with system controllers and all.
[youtube]http://www.youtube.com/watch?v=zQU55ukMqLk&feature=youtu.be[/youtube]
As you can see in the video above, the Source Mod Entertainment System features a fully animated console,which includes pushable buttons, an interactive power switch, and the ability to put the cartridge in the console.
Just watch out for for the Counter Terrorists, ok?