| Name | Lines of code | Maintainability | Test coverage |
| src/player.js | 86 | A 0 mins | |
| src/playerSounds.js | 36 | A 45 mins | |
| src/preciousObject.js | 27 | A 0 mins | |
| src/randomNumberGenerator.js | 7 | A 0 mins | |
| src/renderer.js | 162 | A 1 hr | |
| src/score.js | 18 | A 0 mins | |
| src/soundBank.js | 56 | A 45 mins | |
| src/sprite.js | 52 | A 0 mins | |
| src/worldBuilder.js | 100 | A 1 hr | |
| src/worldOptions.js | 38 | A 0 mins |