Niels Matthijs (Onderhond)’s review published on Letterboxd:
Shell and Joint is somewhat experimental, pretty damn funny and extremely Japanese. A stylistic and comedic masterpiece that hides its wit really well, but for those who reach the end it's impossible to miss. Hirabayashi juggles around a tricky combination of elements that makes it really hard to blatantly recommend, not in the least because it hides a whopping 152-minute runtime, but if you're feeling adventurous, and you're in the mood for something different, then Shell and Joint won't disappoint. Fingers crossed this will one day become a treasured cult favorite, it would do its accolades proud.