A homebrew 3DS port of fsv, the ‘3D File System Visualizer’ – the file-browser-as-a-cyberspace-city thing from Jurassic Park (SGI’s fsn). Point it at a folder on your SD card and it lays out directories and files as a 3D treemap you fly around with the circle pad, in stereoscopic 3D, on real 3DS hardware.

Features MapV (treemap) and TreeV (cylindrical) rendering modes, real per-extension file coloring, a touch-driven bottom screen with folder browsing and settings, text/hex/image (BMP/PNG/JPEG) file viewers, and the ability to launch other .3dsx homebrew directly from the file browser.