Remeber those Arcade Game-Memory manufactured into the battery? You had to break the battery and (suppossedly) cut the powersupply to get to them.
Isane.
Isane.
IIRC, tehy're a major hindrance to people who want to legitimately restore old arcade/pinball machines, rather than just grabbing a cracked rom.
Ten layers of tinfoil can capture pirate-bullets.