There are a lot of things that annoy me about Japanese movies and dramas in general, but for some reason I can never stop watching them
Ain't No Tomorrows / 俺たちに明日はないッス : I loved this. Great set of slice-of-life vignettes that seems very low-key and relatable.
Proof of the Man / 人間の証明 : Amazing mystery, with in-depth portrayals of its characters. I gotta get the book at some point.
SP : Loved Kaoru's traps. Love the twist in the movies.
Conditions of a Great Detective / 名探偵の掟 : I love the whole meta take on the detective mystery genre. Shows a self-consciousness of the whole genre.
Bloody Monday 1&2 : I love how it steers away from cliched plot devices. Not to say there aren't any cliches, but some things you would expect won't turn out that way. Also Yutaka Matsushige really makes the drama shine as a supporting actor. Also love the way how our heroes outsmart the villains; really shows some clever writing and most importantly, keeps the audience on our toes.
Downtown Gaki no Tsukai Waratte wa Ikenai : Need I say more? Well yes, some of the traps get more and more clever each year!