Hello.
I got a pirate Gradius 2, and it's very weird!!
Instead of a VRC clone, it has an unidentified mapper, a PAL, a 74HC4020 and an extra EPROM:
Better resolution: https://drive.google.com/open?id=0B0OtM ... WZZWk4wM1U
Board, componnent side:
Better resolution: https://drive.google.com/open?id=0B0OtM ... VFDWEFIWFk
Board, solder side:
Better resolution: https://drive.google.com/open?id=0B0OtM ... mVOQ1h6VVE
So far, so good! The game is playable and I could finish it (cheating), but it has this annoying bug:
https://youtu.be/x1Dpdv9KTlg
And a interesting fact about it is that with the GameGenie the bug is very less noticeable:
https://youtu.be/aPpO6EAS2ns
I've dumped the ROMS and CRC32 checked them against the originals, the CRC32 matches.
I've dumped the extra ROM, I'll put on the next post.
Could this bug possibly be fixed? How?
What does the extra ROM does? Is it sort of a trainer? Is it used to initialise the PRG RAM?
Why the Game Genie, even without inputing any codes, does this? I have even seem some pirate games just crash or reset while with the Genie. Does it causes some kind of delay?
Many thanks in advance!!
I got a pirate Gradius 2, and it's very weird!!
Instead of a VRC clone, it has an unidentified mapper, a PAL, a 74HC4020 and an extra EPROM:
Attachment:
File comment: Mounted pirate Gradius 2
Gradius 2 Pirata - montado LR.png [ 316.01 KiB | Viewed 5868 times ]
Gradius 2 Pirata - montado LR.png [ 316.01 KiB | Viewed 5868 times ]
Better resolution: https://drive.google.com/open?id=0B0OtM ... WZZWk4wM1U
Board, componnent side:
Attachment:
File comment: Pirate Gradius 2, component side
Gradius 2 Pirata - Componentes - LR.png [ 382.73 KiB | Viewed 5868 times ]
Gradius 2 Pirata - Componentes - LR.png [ 382.73 KiB | Viewed 5868 times ]
Better resolution: https://drive.google.com/open?id=0B0OtM ... VFDWEFIWFk
Board, solder side:
Attachment:
File comment: Pirate Gradius 2, solder side
Gradius 2 Pirata - Solda LR.png [ 367.57 KiB | Viewed 5868 times ]
Gradius 2 Pirata - Solda LR.png [ 367.57 KiB | Viewed 5868 times ]
Better resolution: https://drive.google.com/open?id=0B0OtM ... mVOQ1h6VVE
So far, so good! The game is playable and I could finish it (cheating), but it has this annoying bug:
https://youtu.be/x1Dpdv9KTlg
And a interesting fact about it is that with the GameGenie the bug is very less noticeable:
https://youtu.be/aPpO6EAS2ns
I've dumped the ROMS and CRC32 checked them against the originals, the CRC32 matches.
I've dumped the extra ROM, I'll put on the next post.
Could this bug possibly be fixed? How?
What does the extra ROM does? Is it sort of a trainer? Is it used to initialise the PRG RAM?
Why the Game Genie, even without inputing any codes, does this? I have even seem some pirate games just crash or reset while with the Genie. Does it causes some kind of delay?
Many thanks in advance!!