Sonic Zeta Overdrive brings a few new things to the table,so lets cover those first.

This game is a hack of sonic 2. It alters the level layouts a bit,and changes the pallets too. All of the zones have been re-named as well. The one new thing that interested me about this game is the new character they added to the game, Bean the dynamite. He originates from the game "Sonic the fighters" and hasn't been in another game since. You can find the game on here if you search it up.

Bean is no different than sonic,other than an instant spin dash that launches you forward with just a push of a button. Its helpful,but nothing else is different,so its really just a sonic clone. The sprites for him are unfinished as well. 

The story is exactly the same as it always is, Dr. Egg man is trying to take over the planet using small animals of the island to fuel his robot army. Sonic and Tails catch wind of this and go to stop him. 

Overall,I've played better,and there isn't much appeal to playing this game beyond the first level. The first level is a major change,and it feels like a new level,but everything beyond that is really just a slight level edit. Its worth a try,but I wouldn't want to play it again. I also encountered a rare glitch where my collision was off,and I couldn't jump on springs. I'm not sure how I triggered it though. 

darklink10904651 : Yeah I've played the game a couple of times with a huge time duration between and I keep forgetting that after the 1st zone it's just a palette change and slight level design differences. And yeah for this game there isn't much to talk about so the length is spot on. But for what has been put, you've done good! So keep on giving good reviews

Has anyone ever wondered if bean the dynamite will ever be in another sonic game that's not a hack, fan game, or any of that?
He was in one of the sonic shorts, sonic the fighters, and some hacks. I don't really like him or anything, but it makes you wonder if he'll
ever be referred to again. Finding him in another sonic game would actually be pretty cool. One last question, is there any other sonic characters that were never made in another sonic game? There was another one in sonic the fighters, and mighty isn't as popular as the rest of the chaotic, but that's about it.

Nice review, you put a lot of effort into it. I can see why this game isn't the best game in world.