The Human Centipede was banned altogether from Icelandic, British, and Australian theaters and released in the US without a rating. Its sequel, The Human Centipede 2, was placed under even heavier bans due to its exacerbation of the horrific elements in the first film.

The basic recipe here is that slot machines have a number of symbols on each reel. These are randomly shuffled around so that when the reels stop spinning, the screen shows a mix of symbols. If the final symbols match and are aligned on active paylines, starting from left to right, you receive a payout.