Josh Larsen’s review published on Letterboxd :
Most of the tonal choices made to flesh this out are disastrous. Cringe-worthy comedy scenes of Chappie learning to walk and talk like a “gangster” are juxtaposed with harsh cruelty and violence. Not helping to calibrate things are the enormous performances given by Ninja and Yolandi Visser, who stomp all over the film looking like Iggy Pop and Lady Gaga gave each other haircuts while blindfolded. Blomkamp likes to shop at the Big & Tall store for his villains, but this pair is something else altogether. They make your average Wachowski henchmen look like wallflowers.
Full review here.