A snake game running from a x86 bootloader. The code is under 256 bytes long.
You will need make and nasm to build the binary.
Just run make. It will produce a raw binary.
You can run it using qemu or on real hardware.
If you have qemu-system-x86_64 installed, just hit make run.
If this command doesn't work, you will need to manually specify the drive containing the compiled binary and indicate that it is in raw format to QEMU.
(WARNING : I haven't tested it further for now, it might break, I recommend using qemu)
You can use dd to burn it on your usb, like so :
dd if=./snake-asm of=/dev/yourusb bs=256
It will erase the first 256 bytes of your key. Your usb key should be bootable after that.