Using the Fitbit API, developer Aaron Coleman built-in a variable difficulty engine that allows you to redeem steps counted during a day in exchange for in-game rewards, like wider gaps between the pipes you have to navigate your bird avatar through.
In addition to the normal difficulty levels presented in Guitar Hero World Tour, Guitar Hero: Metallica provides an "Expert+" difficulty for drums that allows the use of a second bass drum pedal to match the drumming style of Metallica's Lars Ulrich.
"Even if western German women would like to [work full time], they have problems getting their kids into early care and difficulty finding care that allows full-time work," she said.
Nearly two-thirds of pet-owners in 2014 reported having some difficulty finding an apartment that allows pets, but the rental listing website said that may be changing.
Critics have pointed out the over-reliance of researchers on the use of recall and precision in evaluation studies [ 18] and the difficulty to design an experiment that allows both laboratory-style control and operational realism [ 19].
To address these difficulties, methods that allow ad-hoc detection of changed functional GO categories have been evolving.
Many people with MND lose movement in their arms and hands so depend on devices such as head mice.' Margie Woodward, a campaigns officer in her fifties, from Romsey, Hampshire: 'I have cerebral palsy and have dexterity difficulties so, where possible, use software that allows me to speak to my computer.
Thus D is a parameter that allows setting the degree of difficulty of the task.
In this paper we consider an example of this kind and present a practical procedure that allows one to avoid these difficulties.
To overcome this difficulty, Cerami introduced a weaker compactness condition (see [22]) that allows for more general results; see for example [23].
