Still playing but it would've been a much better game if you didn't keep falling into endless pits almost every single second. The first 2-3 stages don't have this problem but every stage afterwards suffers HEAVILY from this ESPECIALLY Stage 4: Night Carnival IMO. It makes the game very frustrating and it gets to the point where I'm trying to go as slow as possible to avoid falling, which obviously kills the purpose of what a Sonic game should be. At the very least though, the gameplay mechanics, like the trick system, the special stages, and bosses are fun to play through.

The story is nothing special but it's the first game in the series that introduces characters from different dimensions like Blaze, who is a great character and arguably the best female representation in the series, and also introduces Dr. Eggman Nega.

This game is also the first game in the series to use the boost formula which paved the way for future Sonic games like Unleashed, Colors, Generations, and Forces.

Overall, it's a good and fun game (ATM) but suffers from its level design, which brings the game down A LOT unfortunately. What starts off as a great Sonic game, halfway through felt like they just gave up on making good stages and it shows. At the very least, the setting and style of each stage in the game is unique, especially when compared to a lot of the recent games in the series.

UPDATE: I'm never playing Altitude Limit again.

Get the Steam version, it has 7 games:
- Crazy Taxi
- SEGA Bass Fishing
- Sonic Adventure DX
- Space Channel 5: Part 2
- Jet Set Radio
- NiGHTS Into Dreams
- Sonic Adventure 2

I've only played SADX, SA2, and Jet Set Radio but got this collection on sale for like $5 which was very worth it. (Also, mod SADX. Very worth it and definitely improves the experience from OG SADX and the OG Dreamcast version.)

PS: I don't have the 360 version, backloggd isn't letting me pick just the PC version for some reason.

As a port, it definitely is inferior and very unfortunate since it's the way a lot of people, myself included, played it for the first time, although, it's not as bad as some people make it out to be. It's still a great game but just not the best way to play it. Personally, I recommend getting the PC version since you can add mods onto the game and fix a lot of the problems it has, plus add things that you didn't even think would make the experience better. Also, another reason to get it on PC is because the game, when on sale, usually goes for $1, which is a steal IMO.