1 Games glitch out after splash screen
My gameboy turns on normaly. The nintendo logo flies down and makes the nostalgic DING sound. Then the splash screen of any game appears but after that the games just crash. With tetris you hear the first note of the title song then it skips back to the splash screen. With super mario land 1 the first screen appears. I press start then the music glitches out and the mario sprite never shows up. I can use the buttons but all the sprites are glitched and messed up. The games work fine in my super gameboy on the SNES so this has to be because of the gameboy not the games. I clead all the contacts in the gameboy and the games.
Here's a video with an example what happens.
https://www.youtube.com/watch?v=pZ2hgeDJ...
Update (09/24/2016)
I tried the alcohol already. I cleaned out the games, I cleaned the gameboy pins multiple times.... Nothing worked. The same problem kept persisting. I'm not really that much of techie so I can't really follow the pcb all that much. I took some photos but I don't know if they are clear enough.
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1 
So you're experiencing this with multiple games? I'm gonna say that one of the IC's has probably gone bad. Do you have any access to another Gameboy? That would be a good way to determine if it's the games or the device. One other thing you could try is cleaning both boards with rubbing alcohol as well to see if there is anything unseen causing a "short" of sorts. Beyond that, something on the board is probably going bad, unfortunately.
Andrew Fillhart さんによる
I tested the games on a SNES with a super gameboy. So the games are deffinetely not the problem. I already tried cleaning the entire board and that didn't help either. I'll try again but other than that I'm stumped. I have a feeling that there is something wrong with the portion of the gameboy that controlls sound. The bug only happens when the music should start. Every splash screen where the gameboy is silent appears normally.
vikihochtl さんによる