>1. The Power Button On the NES Is Not On
Obviously, it's an PC-in-an-NES mod, playing roms.

>2. The Super Mario Bros/Duck Hunt Cartridge Cover Is Incorrect
It's a cover they just haven't uploaded to TCP yet.

>3. Super Mario Bros Is a Two-Player Alternating Game, Yet Both Boys Are Playing the Game at the Same Time
My sister used to "play along" when it was my turn, mimicking my controls. Either that or they're playing a hacked ROM where one player gets to play as the Goomba. Even better, maybe this particular PC/ROM Hack lets one person use part of the controls and the second player uses the other half. Teamwork!
>4. The Boy In Blue Isn't Looking at the Television Screen
He's actually blind and he's playing by sound. Congrats for making fun of blind people, jerks.
>5. The Button Presses of the Boy in Yellow Don't Match the Actions Onscreen
Part of the ROM hack.

>6. The Mother Isn't Looking at the Television
She's blind too. It's hereditary. Jerks.
>7. The Game Cartridge Is On the Table, Not In the System
See #1.