An interesting idea, delivered reasonably well.
+++ Lots of jokes packed into the main movie.
-- I'm not too keen on the easter eggs. I like the 2 fuller songs, but you've used them without adding any visual interest.
++ Quality voice for the deeper-voiced thwomp.
-- I felt the other thwomp could have more personality to his voice.
overall
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I quite liked the main movie. An interesting idea, delivered reasonably well.
Nicely done, man. Keep up the quality work!