all machines are random..ie the machines in say corals with several games on 1 console roulette,blackjack,slots and bingo are just a couple i could name pay out seperatley according to gameplay..i wouldnt say they are rigged its down to lady luck..i have been to the bookies this morning and put my horses on..i popped £10.00 into the machine and went on the roulette..it took me exactly 4 minutes to win £110.00 but of course that doesnt happen often..so make of it what you will i guess...