OK, so looking at Macro's previous answer, it was clear that he had already worked out the main clue that said it was System 11, so answers to clues below:
1) It is JAMMA - Just factual
2) 3 boards but not 3 layers - Again factual, Dunk Mania has 3 PCBs, 2 of which are under half size, both fitting into the bottom board making it a 2 layer board.
3) If this board was to play the Australian Lottery, it would have over 462 chances to win the jackpot - On the Australian Lottery website, they have various 'systems' The one that has 'over 462 chances to win the jackpot' is called 'System 11' (as you select 11 numbers).
4) Shooting into a barrell - well barrell shaped basket (sort of)
5) Manic Miner in Open Kettle - Open Kettle was the original name of DUNKin donuts and Manic = Mania (Ok, I did say that clue was cryptic and probably only works in my head).
Well done Mike, and PM me your details to send you the board. simonden2014-01-13 20:54:59