| Questions | Mean ± SD Brazil | Mean ± SD Portugal | p |
| Clear instructions | 9.2 ± 1.5 | 8.1 ± 2.0 | 0.074 |
| Comprehensible instructions | 9.1 ± 1.2 | 8.8 ± 1.7 | 0.581 |
| Recognizable components | 8.6 ± 1.6 | 8.6 ± 1.8 | 0.923 |
| Manipulable components | 9.3 ± 1.1 | 8.6 ± 1.9 | 0.183 |
| Understandable language | 9.1 ± 1.8 | 8.3 ± 1.8 | 0.247 |
| Understandable components | 9.4 ± 0.9 | 8.7 ± 1.9 | 0.129 |
| It allows interaction | 9.8 ± 0.5 | 8.9 ± 1.4 | 0.024 |
| It enables discussion/reflection | 9.6 ± 0.9 | 9.1 ± 1.5 | 0.248 |
| It builds knowledge | 9.4 ± 1.1 | 8.9 ± 1.7 | 0.308 |
| Subject is coherent and contextualized | 9.4 ± 1.0 | 9.2 ± 1.3 | 0.584 |
| Information is relevant | 9.5 ± 1.0 | 9.1 ± 1.5 | 0.362 |
| Challenges are exciting | 9.2 ± 1.5 | 8.6 ± 1.9 | 0.295 |
| Degree of difficulty is compatible | 9.3 ± 0.8 | 8.2 ± 1.5 | 0.012 |
| It provides dynamic learning | 9.2 ± 1.0 | 8.5 ± 1.5 | 0.105 |
| Comparisons facilitate understanding | 9.2 ± 1.3 | 8.7 ± 1.6 | 0.312 |
| It stimulates imagination | 9.3 ± 1.0 | 9.2 ± 1.3 | 0.890 |
| It brings benefit to the everyday life | 9.2 ± 1.1 | 9.0 ± 1.4 | 0.597 |
| It arouses curiosity | 9.1 ± 1.4 | 9.2 ± 1.5 | 0.737 |
| Interest in playing is maintained | 9.1 ± 1.3 | 9.3 ± 1.5 | 0.632 |
| Competitiveness enhances self-esteem | 8.6 ± 1.4 | 8.6 ± 1.7 | 0.914 |
| Successes and mistakes encourage learning | 9.3 ± 1.0 | 8.8 ± 1.6 | 0.323 |
| I would play it again | 9.7 ± 0.9 | 9.3 ± 1.6 | 0.392 |
| I would indicate it to someone else | 9.8 ± 0.7 | 9.3 ± 1.7 | 0.203 |