It was an enjoyable enough flash. There were a number of humourous jokes and I particularly liked Jecht's inclusion with the bad guys. You had to know the character's to really be able to understand it though and while I do, I didn't seem to recognise a few of them. The only problem I really had with the flash is that it felt a little dragged out as there were a number of characters and all each one did was talk about themselves. I felt that perhaps they could have done a little more. Some conversations or arguments between the characters would have been sufficient. Just something to break away from the cycle a little as it wasn't until after the credits that something different happened. That being said, I did rather like how you had the same going on with the bad guys and the good guys.
My first impression was that the graphics were rather cute. I liked the thick chunky lines around the characters and the rather basic style with no shading seemed to add character to the flash.
The music was a very nice choice and was rather relaxing. I thought that perhaps you could have included subtitles though as some of the characters were a little hard to understand. The blonde woman at the start had an echoy voice, which made understanding some of her words a bit of a struggle and others such as Terra were a little hard to make out at times as well.