Why does Mega Man have sound problems with Game Genie?

NotTheCommonDose · Post by **NotTheCommonDose** » Sat Jun 16, 2007 12:34 pm

Everytime I play Megaman 2 and 3 there are sound issues that I cannot address and gets old after about a minute or two and was just wondering how
do I fix this problem? I tried cleaning the carts but it still is happening. Any word on why this happens?

[Subject Line Fairy was here]

Jedi QuestMaster · Post by **Jedi QuestMaster** » Sat Jun 16, 2007 1:04 pm

Yeah, I remember this. It happens with other Capcom games as well, but I never looked into it.

Galoob even had a cautionary statement:

NOTE: all codes make the music sound strange. It's harmless.

ugetab · Post by **ugetab** » Sat Jun 16, 2007 1:14 pm

If I had access to a real game genie, and could change it's ROM, I think I could fix it with a simple sound register reset routine, used after the start button is pressed. Short of that, you'd need at least 1 code in the game genie to fix the error, possibly more than 3.

NotTheCommonDose · Post by **NotTheCommonDose** » Sat Jun 16, 2007 3:18 pm

What other Capcom do this to the sound?

ccovell · Post by **ccovell** » Sat Jun 16, 2007 7:30 pm

Here's a post about the GG and Capcom games (with special NSFs for those games

)

http://nesdev.com/bbs/viewtopic.php?p=7186

It had to do with the music driver in Capcom's games from ~1989-1990. The version at this time didn't set the sweep registers, while the Game Genie mucked around with said registers.

NotTheCommonDose · Post by **NotTheCommonDose** » Sun Jun 17, 2007 1:54 pm

ccovell wrote:Here's a post about the GG and Capcom games (with special NSFs for those games )

http://nesdev.com/bbs/viewtopic.php?p=7186

It had to do with the music driver in Capcom's games from ~1989-1990. The version at this time didn't set the sweep registers, while the Game Genie mucked around with said registers.

It only talks about Megaman games!:-)