I feel like telling an old story.
My brother started a good old fashioned game of Super Mario Bros. 3 on our ever-aging NES. However, this particular playing would become infamous and frequently talked about between me and my brother. Very early on in the game (I'm not sure if it was in the first world or even at the title screen), the game went into something that happens not too commom, but it
does happen -- something we call "construction". The sprites and backgrounds got garbled. However, this was a case as worse as we had ever seem. Weird things happened, like a P-Switch was a Goomba, a coin was a Koopa Troopa, A Buzzy Bettle was a brick, a P-Switch was a brick, a brick was a hammer, and the list went on and on snd on (of course, it didn't necessarily happen
exactly like that, but you get the idea). It was madness!!! Nothing was as it seemed. This went on well into his game. The "construction" finally cleared up somewhere in the Pipe World (World 7). But, man, that was a long run in the game to have to be putting up with that. Our NES is full of surprises like this, not all of them as harmless (relatively speaking, obviosly) as this, though.

It was the day that SMB3 messed up. The NES is still chugging on, but the SMB3 cartridge is missing. I would actually like to see it again, as that is the last NES cartridge I remember buying brand new, and at Toys 'R' Us, to boot. I've got the Super Mario All-Stars re-release, but it's never quite the same.