BigBlueMenu (3DS Homebrew) is a Developer menu / CIA manager for homebrew enabled 3DS consoles. You can load BigBlueBox as a 3ds rom and then install the .cia version so BigBlueBox is always accessible from your home screen, allowing you to install CIA packaged apps, games and emulators.
How to install:Using the BigBlueMenu (3DS Homebrew) you can install many games, eShop games, DLCs, themes, etc. This is the most up to date version of the BigBlue and it’s pretty easy to install. Just remember to have your Gateway updated to the 2.6 version or Higher.Extract the BigBlueMenu.3ds and copy it to your Gateway’s MicroSD like a normal ROM. Copy BigBlueMenu.cia to the root of your 3DS’ SD card.Boot the emuNAND like always and load the BigBlueMenu (Title Manager) from the ROM list. Choose the second tab and select the BigBlueMenu.cia file and press A to install.After installed, you can delete the .3ds and the .cia files, because the BigBlueMenu (Title Manager) will be always on your HOME screen. When you want to install something, place the .cia file on the root of your SD and install it using the BigBlueMenu.