This is an episode guide of Kikai Sentai Zenkaiger, but without the typical filler you'll see in Sentai.
These are the most important episodes because 1) It's a premiere/conclusion of the season 2) Introduces mecha 3) Introduces or destroys weapons 4) Introduces or kills a character 5) New power ups 6) Character revelation/development.
By cutting all the filler from Kikai Sentai Zenkaiger we're left with 31 episodes instead of 49. As of this date, Zenkaiger hasn't been adapted to Power Rangers.
Thanks to ThunderDragonRandy for compiling the original draft of the filler list.
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No. 1-kai! The World of Kikai is Kikikaikai! (キカイ世界はキキカイカイ! Kikai Sekai wa Kikikaikai!)
No. 2-kai! The Gao Beast is Troublesome! (ガオな野獣がごやっかい! Gaona Yajū ga go Yakkai!)
No. 3-kai! A Serious Witch! (マジでぬぬぬな魔法使い! Majide nununu na Mahōtsukai!)
No. 4-kai! It's Huge and Noisy! (ブルブルでっかいおせっかい! Buruburu Dekkai Osekkai!)
No. 5-kai! A Sushi Tournament! (握り握られスシ大会! Nigiri Nigirare Sushi Taikai!)
No. 6-kai! Unpleasant and Mysterious Garbage Handling! (不快不可解ゴミあつかい! Fukai Fukakai Gomiatsukai!)
No. 7-kai! The Prince of the Demon World is Short-Tempered! (魔界の王子は気かみじかい! Makai no Ōji wa Kikamijikai!)
No. 8-kai! Door to Door from Another World?! (ドアtoドアで別世界⁈ Doa tu Doa de Bessekai?!)
No. 9-kai! World Pirates, Pleasant Twokai! (世界海賊、愉快ツーカイ! Sekai Kaizoku, Yukai Tsūkai!)
No. 11-kai! Everyone's Playing Tag?! (渡る世間は鬼ゴッコかい?! Wataru Seken wa Onigokkokai?!)
No. 12-kai! Slow Snail, Hard Shell! (ノロノロマイマイ、カタい貝! Noronoromaimai, Kata Ikai!)
No. 13-kai! Recycling Once Again! (リサイクルすりゃもう一回! Risaikuru Surya Mōikkai!)
No. 14-kai! Duel! Zenkai VS Twokai! (決闘!ゼンカイVSツーカイ! Kettō! Zenkai VS Tsūkai!) No. 19-kai! Zenkai Change, Super Zenkai! (ゼンカイ改め、超ゼンカイ! Zenkai Aratame, Chō Zenkai!)
No. 20-kai! Swordsman and World Pirate, A Brother's Promise. (剣士と界賊、兄の誓い。 Kenshi to Kaizoku, Ani no Chikai.)
No. 21-kai! Giant Monsters of Great Destruction! (大カイジュウの大破壊! Dai Kaijū no Dai Hakai!)
No. 22-kai! Let's have a Bullfighting Party! (ウシシなモ~れつ闘牛会! Ushishina Mo ~ Retsu Tōgyū-kai!
No. 23-kai! Three Great Combos, The Biggest Battle on Earth! (三大合体 地球最大の戦い! San Dai Gattai Chikyū Saidai no Tatakai!
No. 26-kai! Remodeled Prince and Dark Surgeon! (改造王子と闇の外科医! Kaizō ōji to Yami no Gekai!)
No. 27-kai! A Great Voyage Through Seven Worlds! (7つのセカイを大航海! Nana-tsu no Sekai o Dai Kōkai!)
No. 30-kai! Is the Machine Next Door Persimmon-Eating Destruction?!! (隣のキカイはカキ食うハカイ?! Tonari no Kikai wa Kaki kuu Hakai?!)
No. 31-kai! Full Combination! New Release! (ギュウっと合体!NEWっと公開! Gyū tto Gattai! Nyū tto Kōkai!)
No. 34-kai! Pumpkin Carving Competition! (カボチャをトリトリ競技会! Kabocha o Toritori Kyōgi-kai!)
No. 35-kai! Diamond ◆ Delight?! (ダイヤモンド♦ユカイ?! Daiyamondo ♦ Yukai?!)
No. 39-kai! Infinite Happy Birthdays! (無限あけおめ誕生会! Mugen Akeome Tanjōkai!)
No. 40-kai! Rescue My Father, One Chance! (とーちゃん奪回、ワンチャン一回! To-chan Dakkai, Wan-chan Ikkai!
No. 42-kai! New Hero! Secret Meeting!! (新ヒーローにゃ! おコタの密会!! Shin Hīrō nya! O Kota no Mikkai!!)
No. 43-kai! The Weather Chicken's Head is Directly Opposite the Wind! (風見鶏の頭は風の真向かい! Kazamidori no Atama wa Kaze no Mamukai!)
No. 46-kai! A Little God Who Jumped Out! (ゲゲっと飛び出た神のちょっかい! Gege tto Tobideta Kami no Chokkai!)
No. 47-kai! Enter The Palace! I'm Proud Even In Front of The Boss! (パレス突入!ボスの前でも頭が高い! Paresu Totsunyū! Bosu no Mae de mo Zu ga Takai!)
No. 48-kai! Sky Full of Stars, The Dynasty Collapses! (天網恢々、王朝崩壊! Tenmōkaikai, Ōchō Hōkai!)
No. 49- My World, Everyone's World (俺の世界、みんなのセカイ Ore no Sekai, Min'na no Sekai