I would not say so because I thought that that game actually was pretty darn good. I liked that one alot more than some others

Its gameplay was vitally different from the previous sonic games, along with his games for Wii. I think that Sonic Heroes, along with the Wii games so far, have really changed his image a bit, and have contributed to his downfall. Still has the carefree attitude, though.

I wouldn't say it was that game itself. I really think the decline was caused by the Sega Dreamcast being discontinued and Sega switching over to just Software.

you probably don't wanna hear it, But sonic adventure was the downfall of sonic.
It was a pretty good game, one of the best 3d plat formers. especially at the time. However they made sonic into a super goodie goodie, where as the Genesis ones made him have an attitude.
The game had oodles and oodles of camera problems which were never fixed in the upcoming games. and the voice acting was terrible. It turned me off from sonic. and it probably did the same for other people. different styles of game play were fun. However playing as BIG the cat wasn't fun at all, Amy was annoying, and E102 gamma was too flashy. the game didn't have just one set of rules which is why the second adventure game had less play styles.
and inevitably Sonic heroes came out to s*** on everyones parade.

S-Sonic Heros w-was one of the 5 t-top best games EVER (in my opinion of course), it w-was the best of b-best that even my sister (she really hate sonic very much) played it.

I would never dare say that Sonic Heros was the downfall of Sonic, it was Sonic Riders's fault! (and Sonic Rival too!).

Sonic heroes is one of the best games I have ever played but it was shadow the hedgehog because of the guns

The downfall of Sonic happened a looooong time ago. Sonic died when he left his classic 2D roots.

I could say that sonic heroes wasn't the decline. It is fun to play, but I do think that some of the characters were annoying. I'd say it is a hit and miss but not the downfall. Sonic next gen was the downfall for sure.

I woundn't say that the game itself was the downfall,but certain mechanics and features were contributing factors. The somewhat loose controls and overload of sidekicks were encouraged by the Sonic fans of the then-new generation. Sega gave them what they wanted with later games. Because the fans didn't know what a good Sonic game was supposed to be like, they couldn't see that they were causing the downfall of the Sonic series by encouraging the expansion of the side-kick roster and over-used gameplay mechanics.

Sonic Heroes has a good game music but Sonic games are better 2d than 3d with the exception of Sonic Adventure 2 Battle.

I like Sonic Heroes! I beat this game with Sonic, Tails , & Knuckles last year when Knuckles was my favourite, but now Shadow is my favourite & I should soon try to finish Sonic Heroes with Shadow & his gang!

Sonic,knuckles,and tails are the best characters in sonic heroes...

Just to add a little bit of info on the question about the little creature raising (they were called chao). Sonic adventure 2 did have that bit, but so did Sonic Adventure. The games aren't just on the Gamecube. They were for Dreamcast (actually originally made for the dreamcast).

I LOVED Sonic Adventure and Sonic Adventure 2. The game play was amazing (except for Big. I never was interested in his levels). But what really made it was the well done storyline. Sonic Heroes takes place right after Sonic Adventure 2. I did like the new style of 3 character team game play. But I do think this is the point where the Sonic games did go downhill, so this was the game that started the snowball. The reason is because the story was actually good. They had a good base there. The problem was the execution of the story was sloppy. Its like they had the base story and only had one day to create the dialog and events that happen to make up the whole story. The cut scenes were short and choppy, killing the flow of the whole thing. It seemed to just be thrown at you and so nothing was really developed to the depth that Sonic Adventure 1 & 2 gave. Those looked like they took a lot of thought. Not so much here. The remaining sonic games (Shadow the Hedgehog was the most closely like this) followed the same pattern where there was a story there and some were continuations from the Sonic Adventures, they just did a crappy job at giving it a well developed depth. For me, awesome game play alone will not cut it.

(I made a reply to this topic ? Wow!)

No game can be considered a "downfall" to a series.

Maybe the game was not well received but the following game in the series was. It is not really possible for you to say "Oh because this game is made the series now fails" because that is just THINKING that after the game or during the game's creation, everyone at the game's company suddenly lost their skills. Maybe the game tried something new that did not work out (the team system in this game)

To call something a "downfall" to a media series you should base it around events that happened in the company's offices, like an employee getting fired or the previous item (although it may be..."good" and well received) did not do well in sales and the company had to cut down budgets which made it seem like the item caused a "downfall" and made all the other games worst. For Sega's case it was due to Dreamcast's failure.

Sonic Heroes is not bad but can be improved, it's level design is amazing however levels tend to be a bit long and the bosses could have been harder.

Meh, not exactly the downfall, but it did begin the 3D Sonic games and that is the only Sonic 3D game I like, so it might have some cause but its not the main cause.

WSF: Layout problem. Fixed.

The original Sonic games were my childhood O.O Sonic Adventure was the first 3D Sonic game I played and I thought it was alright. I'd say the downfall of the sonic games started shortly after they strayed from the originals. I mean it just FEELS wrong for the recent games. Personally, I think Sonic Heroes sucked, felt too repetitive to me and was too frustrating at times. 

I will agree that Sonic Adventure 2 Battle is probably one of the last "good" 3D Sonic games, and the ones afterwards were a steady decline.

However, Sonic has started to make a comeback in its games, returning to the original fast-paced platforming games. Sonic Colors, I heard was a great game, Sonic 4 was welcoming for retro gamers, and now Sonic Generations is coming out, which I have high expectations for. Sonic may have had a decline starting with Heroes, but I think it's building itself right back up.

Hmm... In my opinion no. Sonic Heroes, even though it was weaker than the previous title, was still fairly good. The downfall was Sonic 2006, or the whiny fanbase (they and other factors forced Sega to release it faster ). Yeah, I'm one of those 8 people who believe that it was a good idea for Sonic to enter the 3D world. Heck, my favorite 3D-Sonic game is a toss-up between SA2 and Unleashed. The series has gotten much better over the years though - with the releases of Unleashed, 4, and Colors. That's why I am really hyped for Generations this winter. The main point is, we need more tolerant people in this regard.

Well maybe it was one of the downfalls because it was annoying having to stop and switch character and stop puzzles.

Hey, who broke the page?

Anyway, you're a game early with "the downfall of Sonic." Sure, Sonic has had bad games before then, (Sonic Spinball, Sonic CD, and Sonic 3D blast are garbage) but Sonic heroes was "okay". Not great like the Sonic Adventures, or overrated but still good like the genesis games, but okay. The garbage was released in the form of "Shadow the Hedgehog", a terrible game with terrible controls, awful missions, and stale levels. The only good thing about this game was the story.