Table 7.

Results of the questionnaire designed based on usability part of the playability heuristics [52].

Question		Question, mean (SD)	Heuristic, mean (SD)	Heuristic overall percent
1. Provide immediate feedback for user actions.
	Q1	4.1 (1.5)	4.1 (1.5)	82
2. The player can easily turn the game off and on, and be able to save games in different states.
	Q2	2.3 (1.3)	2.3 (1.3)	46
3. The player experiences the user interface as consistent (in control, color, typography, and dialog design) but the gameplay is varied.
	Q3	3.7 (1.3)	3.35 (0.49)	67
	Q4	3 (1.2)	N/Aa	N/A
4. The player should experience the menu as a part of the game.
	Q5	3.4 (1.0)	3.65(0.35)	68
	Q6	3.9 (1.0)	N/A	N/A
5. Sounds from the game provide meaningful feedback or stir a particular emotion.
	Q7	3.5 (1.2)	3.35 (0.35)	67
	Q8	3.2 (1.1)	N/A	N/A
	Q9	2.8 (1.6)	N/A	N/A
6. Players do not need to use a manual to play the game.
	Q10	4 (0.9)	4 (0.9)	80
7. Make the menu layers well organized and minimalist to the extent the menu options are intuitive.
	Q11	3.9 (1.6)	3.9 (1.6)	78
8. Get the player involved quickly and easily with tutorials and/or progressive or adjustable difficulty levels.
	Q12	4.1 (1.3)	3.95 (0.21)	79
	Q13	3.8 (1.4)	N/A	N/A
9. Art should be recognizable to the player, and speak to its function.
	Q14	3.7 (1.2)	3.65 (0.07)	73
	Q15	3.6 (0.7)	N/A	N/A

^aN/A: not applicable.