I've just found this little gem. A short (roughly eight minutes) animation film in the japanese style (I know, it was obvious from the title) about a woman who wake up transformed into a cockroache.
Unlike the character in the well know story by Kafka, she actually is the size of a cockroache, and to our pleasure she and the viewers see herself as a woman.
Thus begin the little adventure of a tiny naked woman in her apartment when her boyfriend wake up and see the disgusting insect roaming around.
A very, very fun watch!
https://youtu.be/B56d_vOoUww