Great Humor, Excellent Graphics
Some of those scenes probably took a lot of time (especially the somewhat rotating view of the Moratory). The graphics were excellently synched with the various sounds chosen for funny effects, and the various voices in the head were simply hilarious.
Hmm, the only thing I'd recommend for improvement would be the lip synching, if you have the time to do it. That would probably give you some extra score.
Oh yeah, and I recognize that Contra music in the beginning (Sega). :)