It mostly depends on your own definition of cool but here is a list of some of the ones I think are pretty cool
76 - Conan vs. Kaitou Kid
132-134 - Magic Lover's Murder Case
162 - The Sealed Chamber in the Sky
219 - The Gathering of the Detectives!
286-289 - Shinichi Kudo's New York Case
323 - Heiji Hattori's Desperate Situation!
345 - Head-to-Head Match with the BO
356 - Kaitou Kid's Miraculous Midair Walk
394 - Big Adventure in the Eccentric Mansion
406-408 - Conan and Heiji's Reasoning Magic
469-470 - Kaitou Kid and the Four Masterpieces
472-473 - Shinichi Kudo's Childhood Adventure
479 - Three Days with Heiji Hattori
515 - Kaitou Kid's Teleportation Magic
521 - Murderer, Shinichi Kudo
537-538 - Kaitou Kid vs. the Strongest Safe
585-587 - Kid vs. the Four Divine Detective Boys
627-628 - Conan & Kid's Battle
that's most of the cases i like granted most of them are Kid cases oh and ova 1,4,6, and 10 are pretty sweet same with movies 3,7,8,10,13, and 14
Also If you are a Kid fan I suggest you look into the magic kaito episodes there is 6 of them at the moment.
