The Sub Mariner Marvel hero made its debut back in 1939. The character was one of the top 3 hero comic books for Timely Comics which subsequantly became Marvel Comics.

Now it makes it long awaited transfer to video slot machine. As the son of a human sea captain and of a princess of the mythical undersea kingdom of Atlantis, The Sub Mariner, aka Namor, possesses the super-strength and aquatic abilities of the "Homo mermanus" race.

This is essentially a 5 reel video slot machine with 25 paylines and a couple of really interesting special features.

First off as you can expect with all Marvel games is that there are 3 Marvel jackpots which can be won randomly.

The second feature is the Sub Mariner swim feature which is triggered with the Mariner symbol on reels 1 and 5. Here the Mariner will swim across all the reels and convert some other symbols to Mariner symbols making additional prize wins.

The 3rd feature is the Protector feature where you'll help to fight off the battle. Trigger this feature with 3 or more of the logo symbols. In the bonus game, you must choose to destroy 3 of the attacking ships from above. Each vessel destroyed will equate to a prize which will either be a cash award or free games.

Overall this is an awesome slot machine with great animations, fantastic theme and long lasting appeal.