B. User Design Phase
In user design phase, the learning path selected for the mobile application is linear sequencing strategy. In this strategy, the student will only be able to progress through the game sequentially, from one level to another. Consequently, the learner can only go forward one way. The student can go back to the previous levels but is not allowed to skip around [5].
Figure 2 shows the functional decomposition diagram of the mobile application which includes play button, how to play and exit button while figure 3 shows the implementation of the main menu.