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# hakchi2
This application can add more games to [the Nintendo Classic Mini: NES](https://www.nintendo.co.uk/Misc-/Nintendo-Classic-Mini-Nintendo-Entertainment-System/Nintendo-Classic-Mini-Nintendo-Entertainment-System-1124287.html) or [the Nintendo Classic Mini: Famicom](https://www.nintendo.co.jp/clv). All you need to do is connect it to a Windows PC via Micro-USB cable. No soldering, no disassembling.
### Features
* Fills all game data automatically using included database
* Automatically checks for supported games
* Enables [Game Genie](https://en.wikipedia.org/wiki/Game_Genie) codes
* Can automatically patch problem games, patches for some popular games included in the package
### Additionally, Hakchi2 allows you to
* Change any game settings, including command-line arguments
* Automatically search for box art using Google Images
* Upload hundreds of games at once
* Return to the HOME menu using button combination instead of the Reset button
* Enable turbo buttons
* Simulate start button on second controller for Famicom Mini
* Disable epilepsy protection
* Disable menu music
No! It was my russian сomrade madmonkey. He created original “hakchi” tool. It was not very user friendly so I decided to create tool which is simple for everyone, not only Linux users. I named it “hakchi2” because I don’t like to coming up with names. So first version was 2.0 :)
## So did you hack the NES Mini?
## How to use it?
Basically you need just to unpack it somewhere (installation not required), run it, press “Add more games”, select some ROMs and press “Synchronize”. Application will guide you.
## How it’s working?
You don’t need to worry about it. But if you really want to know it’s using FEL mode. FEL is a low-level subroutine contained in the BootROM on Allwinner devices. It is used for initial programming and recovery of devices using USB. So we can upload some code into RAM and execute it. In this way we can read Linux kernel (yes, NES Mini runs on Linux), write kernel or execute kernel from memory without writing it to flash. So we can dump kernel image of NES Mini, unpack it, add some games and script which will copy them to flash, repack, upload and execute. But games directory is on read only partition. So we need also to create and flash custom kernel with special script that creates sandbox folder on writable partition and mounts it over original games folder. So your original files are safe. You can’t delete or harm original files in any way. For kernel patching my application just executing other applications, that’s why there is “tools” folder.
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