| Name | Reviewer | Quote | Score |
| GF3K.com | Kathy and James | At any rate, this is a fun game. | 7 out of 10 |
| GamePower.com.au | Adam Washington | Unless you're a serious Sonic fan and have to have every piece of merchandise, it's Safe to let Sonic loose the race on N-Gage. | 5 out of 10 |
| IGN.com | Chadd Chambers | Sonic N is a great game that ultimately May be impossible to fully enjoy with the limitations of the N-Gage's screen ratio. | 6 out of 10 |
| GamePro.com | DJ Dinobot | The screen is tiny Enough as it is, and SonicN wastes way too much precious real estate with colored bars at the top and bottom. | N/A |
| GameZone.com | Michael Knutson | SonicN plays exactly like any Sonic game you have played in the past. | 7.3 out of 10 |
| GameSpy.com | Matthew Freeman | Lack of multiplayer aside, Sonic N is a solid addition to this series' Canon and a decent single-player experience for the handheld. | 3 out of 5 |
| DigitalEntertainmentNews.com | Daniel Pelfrey | Marred by a mis-oriented screen, Sonic N is almost unplayable. Being able to get past that, however, gives players one of the best N-Gage Games available, and a truly decent Sonic game. | 8.3 out of 10 |
| GameAxis.com | pyre | ...we can Only recommend this title to hardcore platform gamers or true blue Sonic fans. | 5.9 out of 10 |