bangbang = 1994 or 2000
?
2011
it's the version which was put out last year after the rights were bought for it.
Original game is from 1994, failed location test. Was updated in 2000 (mostly just copyright change) failed location test again.
Rights were bought to these 2 protos last year, and subsequently they were released last year as commercial games (AES carts) which means they're no longer 'protos' as such, but genuine releases from 2011.