Room for improvement
This animation has a few areas that could be improved upon. The voices really need to be clearer although I am impressed you did them all yourself. The other sound effects were nice an cartoony and fit the style well.
Your animation needs a little more polishing, try to get more flowing movement. You animated the tenticle very well.
The humour wasn't too bad, you put in nice little touches like the bird flying past the whole in his head which made me chuckle. Your script needs some work though, I think you over used your cameo quota. In lampoon, try to stick to one major theme and occasionally draw upon others.
The graphics were better than anything I could manage so I can't really pass judgement, just keep practicing and refining your style.