Sonic the Hedgehog made his first video game appearance in 1991. His first video game was such a success that Sega made him their mascot. The character would appear in more installments.
Although Sega quit making consoles in 2001, Sonic would continue to appear in games played on other platforms. And the game Sonic Heroes marked the beginning of the period.
Besides being the first Sonic game released in Sega's post-hardware years, Sonic Heroes is also something I would like to call the final gem in the Sonic series. In other words, it is the last game in the franchise where things are done pretty much within tradition. From Sonic Adventure to this game, the fox's speaking role was done by little lads. But in games following Sonic Heroes, old long-haired undesirables stole that role and (perhaps) to no end which kinda saddens me. If the character in a video game, TV show, or film is a young boy, it would be really nice to reflect that character by using a young boy actor to do his words. I can only hope Sega would understand that.
Anyway. everything else about the game such the music, graphics, and gameplay, their just as good as any Sonic game in Sonic's 3D era. Again, this is the final gem in the Sonic series.