unlockables

[zjjackson101]

Hi
Im new to retro Pi(havent even built yet, waiting to recieve pi3B in mail).

I want to set up retro pi for my son, however I want him to experience gaming similar to the way I did. Basically I want to have the original Legend of Zelda and the original Mario as the only games to start. But i want him to see their evolution's (ie ocarina of time, super mario world, etc) but not be able to access them. I would like it to be setup up so if he beats the original game he will unlock the next one in the series and so on. Or maybe even if he completes some special task in game he will unlock another game. Im sure this is possible but I dont know what it would take to accomplish. Any ideas suggestions on how to get started with this project? or anyone know if already exist or is being developed some where?

[cyperghost]

Surely it's possible - even automatic. If the Zelda games got a battery RAM for saving then an advanced user can compare the savegames and on a specific value (experience level, item....) a script can be executed to rename Zelda 2.nes.bak > Zelda 2.nes

On next boot the next Zelda game is displayed via automated script. But hell... speak with your son and tell him it's time to play the second part :)

Really a nice idea but very hard to realise. Impossible? No!
Why? It's a hard job to detect the values needed. We are not talking about simple XML-file editing. You need some cracker skills. Simpelst way it to compare 2 files with different experience status (in Zelda for ex.) and then change the values manuelly. Perhaps this works.... If Nintendo is a badass then there are checksums and voila - you need real cracker skills ;)