After starting a game of Robotron, go to the options screen. Click on ''Lives'' 50 times to access the God Mode. After a game boots up, hold down L2 and press Select to enter that game's arcade ...

Extending arcade games by tapping into address and data lines isn’t something we see a lot of, but it has been done, most famously with the Church of Robotron. Here, a few MAME hacks turn a game ...