The things I want to consider is which would make more sense while using a keyboard and applying a certain level of difficulty, to use obviously during battles.
What questions can I use if I produce a survey to try and figure out which to use. What age group should I try and target and avoid. How many questions do you ask to get the point across to not only the person answering but myself – without over whelming the person answering also.
If the idea of using the number pad is void, how will I show an increase of difficulty to the challenges you would face in game.
With the two versions of Challenges being memory and reaction, how would I then get them to work smoother and show that on screen for the player to understand.
A timer to indicate how long you have to type in the sequence could be an option.
As a indicator and something to support me with in my decisions that I have been recommended to read:
Schell, J., 2008, The Art of Game Design: A Book of Lenses, CRC – Chapter 11 & 12.