Interesting.
You've got the skill. The graphics and animation were smooth, stylish and well made the voice acting was superb, apart from santa, who was too quiet to make out, and the use of music was excelent and varied, but it just lacked the comedy. The humor seemed extremely dry to me. It lingedered on that 'logic' gag too long, and that itself was a cliché. It seems that you've suddenly learnt how to use flash from proffesionals, and threw together the quickest storyline you could come up with as an excuse to post.
For example, the whole movie is based on the premise of Ken Kutaragi being killed, but what was the point? His character didnt develop at all, he didnt even have a line and he was on screen for less than a second. The fact you killed of a character which virtualy didnt exist in the first place made it dull, and dosn't leave the viewers to make up their own conclusions, then see if they were right.
Not everyone knows who Ken Kutaragi is, so the development was needed.
Anyway, keep at it, you've got talent there.