Perfect Effort.
This is ideal for Sonic Fans. Oh, And anyone with ears.
I liked the placement of the additions. A lot of the time when you hear a remix, There a shitload of clutter and basically it becomes too layered and its impossible to even hear the original piece of work being mixed. You kept to the original a bit, But still got a huge portion added on.
Anyway, The quality and sound clips were all crisp and clear. Nothing cut off or was completely drowned out of the song. So overall this is deserving of its current spot within the top 50 of Newgrounds.
Keep this standard up.