There are some pretty cool variations of basic exercises, like Push - ups, that are much more demanding. (dieselcrew.com)
One of the things that makes series addictive is that they offer readers the kind of stories they're already craving, with cool variations that make each new book fun. (melanierockett.com)
The rules feature several cool variations to change the difficulty of the game, which is always welcome in more straightforward games. (engagedfamilygaming.com)