| name | Happy Lesson: First Lesson |
| format | Dreamcast |
| company | Datam Polystar |
| role | Publisher |
| specificrole | |
| credited | Yes |
| name | Happy Lesson: First Lesson |
| format | Dreamcast |
| company | Fupac |
| role | Developer |
| specificrole | |
| credited | Yes |
| name | Happy Lesson: First Lesson |
| file | HLFL DC JP back.jpg |
| filepage | |
| name | Happy Lesson: First Lesson |
| file | Dorimaga JP 20021011 2002-18.pdf |
| filepage | 35 |
| name | Happy Lesson: First Lesson |
| type | 0 |
| console | DC |
| region | JP |
| date | 2000-09-28 |
| rrp | 4,800e |
| code | T-19504M |
| code2 | |
| rating | |
| name | Happy Lesson: First Lesson |
| format | DC |
| sha1 | |
| md5 | |
| crc32 | |
| size | |
| date | |
| source | GD-ROM (JP) |
| comments | |
| quality | |
| prototype | |
| undumped | |