Superhero Slots

Yahoo Games has Superhero Sluts but you have to sign in to play. The loading screen shows a wide range of Marvel characters including Thor, the Hulk, War Machine, the Destroyer, Ghost Rider and Iron Man:

You can choose Iron Man, Susan Storm aka the Invisible Woman or the Hulk as your avatar:

The first game that you can play at Superhero Slots is Iron Man 2:

Here is a screenshot of a winning Iron Man 2 game with Black Widow as wild card:

A flying Iron Man pops up on the screen:

The next Superhero Slots game is Daredevil but you have to hit level three to open it:

Of course, you will likely be out of money by this time so it's hard getting to other levels. Other games include King Kong at level five (no clue why is a superhero), the Incredible Hulk at level seven, the Mummy (another monster movie that has nothing to do with superheroes) at level nine, Elektra at level eleven, the X-Men at level thirteen, Fantastic Four at level fifteen, Punisher at level seventeen, Blade at level twenty, Thor at level twenty-three, Marilyn Monroe (lol) at level twenty-six, Ghost Rider at level twenty-nine, the Avengers at level thirty-two, New York Gangs (now they are not even trying) at level thirty-five, Rocky (yeah, the boxer movie) at level thirty-eight, Vampire Slayers (yep, another horror game) at level forty-one and Viking Conquest (WTH?) at level forty-four.

There is no Captain America game at Superhero Sluts, which is surprising. Be sure you have a lot of friends before you play so they can send you coins. Otherwise, you'll never be able to play again after you use all your starting coins.