Online slot machines are the easiest games to play at a casino and offer a great variety of usually only 3 or 5 reel styles, but with multi-player ones allowing for teamwork or competitions. They are the most entertaining of all online casino games, with animations and sound effects complimenting the theme of each machine. The most popular themes include Wolverine, Street Fighter, Silver Surfer Blade Marvel Comics slots, X men, and Iron Man slots. The social side of playing the slots is very strong, especially when several players are involved in a ream effort, together. Each new game reflects current movie themes, popular video games or fantasy worlds and characters from books.