Mysterious origins of Dream Mary (aka Fancy Mario)

[treismac]

While reading Satoshi Matrix's blog, I stumbled across Dream Mary for the first time. For those who don't know, it is a cartridge mod that interferes with the game's mirroring function creating a "a bizarre scrolling effect in which the screen splits in half: the right half is unchanged but the left half of the screen displays what’s way ahead of you, on the next screen" (http://133fsb.wordpress.com/2009/11/...y-on-a-budget/). I wanted to know what if anything noteworthy ya'll might be able to tell me about the lore of this interesting game modding technique. Any and all links are also appreciated. Thanks!

[Satoshi_Matrix]

This was discovered on Famicom World. There's a chinese famicom pirate of SMB1 that's incorrectly wired called "Dream Mary". The result was a copy of SMB that would scroll incorrectly, showing what's about to appear before it does.

You can do this with any mapper 0 game. That means early NES games that use either the NROM-256 or UNROM boards. Those early games literally have points on the pcbs that control the scrolling. Later, more advanced games used memory mappers (MMCs) that took over this function. I have three games that I've done this simple hardware hack to.

If you'd like, i can post a video showing them.

[JSoup]

If you'd like, i can post a video showing them.

I would like to see this, if it isn't a hassle.

[treismac]

If you'd like, i can post a video showing them.

I would like.

I've already seen your Castlevania one, but you might as well post it for the benefit of those who haven't seen it.

[Satoshi_Matrix]

Aforementioned "Dream" Castlevania video o'mine.

http://www.youtube.com/watch?v=7_MX2C9w2mg

[Parodius Duh!]

ugh...Dream Mary....what a crap of a hack that game is...

[djshok]

It looks like playing a broken cartridge... am I missing something here?