ASIS CTF Quals 2014: Trivia 50

Mon 12 May 2014 CTF

This challenge was fun. It was a NES ROM image that contains the famous game - Battle City. After quick examining ROM in hex editor we did not find anything useful. So we decided to run it. Emulator used - FCE Ultra v0.98.13.

Startup screen:

When we played it we tried to dump ROM memory (trying to find out the flag, but not succeeded). And when the 1st level was done we get the flag:

There is a little bit bruteforcing answer because the flag "8 bit rules" was not the correct answer. After trying different versions we get the flag: 8BIT_RULEZ.