It really does remind me of "His World", that's why I love this! Keep remixing! ;)
I like the variations on the original theme. Maybe a bit repetitive, but I didn't find that a problem, partly because the original is fairly-repetitive, too. Some parts sounded a bit flat compared to the rest of the remix, but maybe it's just me. The only other thing that bothered me somewhat was the beat, which I found slightly annoying in some parts, but that didn't really detract from the overall listening experience. Good work, as usual.
This is their remix music video game world sonic the hedgehog
Now SEGA just needs to make a good version of this game. One way is by adding this into it.
Please contact me if you would like to use this in a project. We can discuss the details.