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Konami Collector's Series: Castlevania & Contra

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Title Screen

Konami Collector's Series: Castlevania & Contra

Developers: Konami Software Shanghai, Konami Computer Entertainment Hawaii
Publisher: Konami
Platform: Windows
Released in US: November 16, 2002

MinigameIcon.png This game has unused modes / minigames.

An official emulator on a disc that features five NES games from the two big Konami franchises that start with the letter 'C'... and Jackal snuck-in for some reason. Nearly 18 years later this little compilation would rerelease on GOG with the DRM removed. The Beginning of a Legend...


Where's Bruce Willis?
To do:
Document all the changes done to the games in this set versus the original dumps.

It was discovered that the game contained somewhat altered NES ROMs of the Castlevania and Contra games soon after it was released. The games had several small changes, which were mostly done to remove any references to Nintendo on the title screen. A Jackal ROM was also found in the executable. The ROMs themselves were released after the discovery was posted at a message board on December 2002, and they've been available on the internet since then.

Despite the fact that it's in there, Konami never revealed a code to play Jackal in the emulator itself. However, you can trick the program into loading Jackal by using Cheat Engine. Start the game, and once you get to the game selection menu, run Cheat Engine, select CC.exe from the process list, and modify memory address 94AC78 in byte form so its value is 5. Return to the game, press Enter, and Jackal will load up. The actual memory address found by Cheat Engine is 54AC78, but the relative memory address adds 400000 to its actual location.

Keep in mind that if you change the value of this memory address before the game selection menu loads completely, the program will crash.

(Source: Buddha & qwe)