| name | Shinichi Higashi |
| file | Sonic Chaos SMS credits.pdf |
| filepage | |
| name | Shinichi Higashi |
| file | Sonic Drift GG credits.pdf |
| filepage | |
| name | Shinichi Higashi |
| file | Sonic Triple Trouble GG credits.pdf |
| filepage | |
| name | Shinichi Higashi |
| file | Sonic Drift 2 GG credits.pdf |
| filepage | |
| name | Shinichi Higashi |
| file | Tails Adventures GG credits.pdf |
| filepage | |
| name | Shinichi Higashi |
| file | NiGHTS into Dreams Saturn credits.pdf |
| filepage | |
| name | Shinichi Higashi |
| file | Sonic Jam Saturn credits.pdf |
| filepage | |
| name | Shinichi Higashi |
| file | Sonic 3D Blast Saturn credits.pdf |
| filepage | |