If you liked Hellboy the comic book series or Hellboy the movie, you will love Hellboy the online slot machine. And if you've never heard of Hellboy before, the Hellboy online slot game is a great way to make his acquaintance.

All of the main characters of the Hellboy saga are represented on the Hellboy online slot machine. There is Hellboy himself, of course, and his powerful Right Hand of Doom, which happens to be the scatter symbol in the Hellboy slots game. Then there are the supporting characters: Lisa, Abe, Johann, and Trevor. They are all part of the Hellboy story and they are all winning slot machine symbols in Hellboy online slots.

Finally, there is the Hellboy Logo symbol. The Logo is a wild symbol that can substitute for any other slot machine symbol, and thus make it so much easier for you to win at slots.

The Underworld bonus game is triggered whenever you get three or more Right Hand of Doom symbols scattered anywhere on the Hellboy five-reel slot machine. In the Underworld bonus game, you are transported into a creepy underground world of tunnels and closed doors, and your mission is to pick the right doors to lead you to your teammates. Every good pick will win you a prize and advance you to the next level, but watch out: if you pick a door to a caved-in tunnel, the bonus game is over.

Supermode is a randomly activated special feature of the Hellboy casino slots game. When you're in Supermode, you not only get ten free spins, you also get up to three held wild positions to further increase your chances of winning. You're sure to be a super winner when you play Hellboy in Supermode.

Hellboy promises to be one of the top slot machine games in online casino history, and remember, there is no better place to play slots online than All Slots Casino. Hellboy and All Slots make a winning combination that brings you the very best in online slot machine entertainment..