Easter Eggs

Below is a listing of various easter eggs within the game.

Compass-chan Surprise

Kancolle Easter egg?

When you get a ship drop, extend the flash object and click on the upper left third of the black area (the cursor will change to a hand) to get the COMPASS-CHAN CLASSICAL DANCE PARTY.

It seems to have been removed on December 2014. Instead it was replaced with an image of a black colored ship girl with NO DATA printed on the anthropomorphise version. Since sometime around then till now, the NO DATA variant has now been removed for just a simple background, the voice line, voices and the caption but no actual image of the ship girl herself.

Some more information about it can be found here (albeit in Japanese only): http://kancolle.doorblog.jp/archives/35481633.html

Non-functional repair cancellation dialog

The "cancel repair" dialog is a function that is likely removed from the game. After placing ships in the repair dock, stretch the game window horizontally until there's a significant amount of wide black space on the left and right sides. Clicking on the space on the left will display the dialog, which does not actually cancel anything if "yes" is selected. Note that selecting "yes" also causes various bugs to occur.

Re-clicking the black space again (by cancelling the window for the first time and clicking on the black space again) will sometimes show not an "undefined" ship but also a random ship that is currently in your possession (it can even show a ship that is currently going on an expedition).

Bug bouncing in the visual gallery

The fairy (with the books on her head) in the gallery also has a bug on top. If you click on the fairy, the bug will bounce, and sometimes fly away. There has been a mini-game where some people see how many times they can click on the bug before it flies off (record on the Japanese Wiki seems to be 78 times).

Jumping Construction Girl 

Kancolle Easter Egg At Construction Place

This common easter egg only happens when you begin constructing a Ship girl, and clicking on that particular construction girl with a ponytail carrying boxes.

Unimplemented features

By taking apart the flash game client, one can discover features that are unimplemented, or have been cancelled.

Unused ship classes, equipment classes, and equipment

1. 海防艦 (Escort ship)
   • Same repair time as submarines and less build time.
   • Similar to DD but can't use torpedoes.
   • According to a quarterly mook 艦これ鎮守府生活のすゝめVol.1 which was released in 2013, there are plans to implement new escort ships, and because their displacement is less than that of destroyers, they would take a younger form, but they are said to be for the final phase of the war and thus, while they want to release it as soon as possible, they have told the fanbase to please be patient about it. (That volume of mook also revealed the plan to implement Musashi, Akizuki-class destroyers, and Agano-class cruisers which are all now part of the game)
   • Game Client contains the image file to the right, supposedly a background when viewing an escort ship in the library
2. 補給艦 (Supply ship)
   • Same repair time as submarines and lower build time.
   • While they are not implemented as a ship for player use, they do exist in the game as an enemy vessel. Historically, Mamiya and Irako are classified as supply ship.
   • Hayasui does not fall into this category.
3. 超弩級戦艦 (Super dreadnought)
   • Similar to BB.
   • Historically, all battleships in the game are super dreadnought.
4. VT信管/近接信管 (VT fuse/Proximity fuse)
   • Usable by all ships except submarines.
   • Appeared on June 12, 2013 update notice together with other AA equipments when it mention equipment AA power increase, with a note that it is unimplemented.
5. Docking Completed voice line
   • Available from extraction for many ship implemented in the game's first 1.5 years but can never be heard in-game.
6. Kanmusu kcrzgndzraoddu
   • Under kancolle server's directory, a folder with encoded file name as kcrzgndzraoddu contain sound files of unknown kanmusu, which can probably be seen as something dummy. More information maybe found here. (Seems to be removed now.)

Unimplemented items Development material box (開発資材箱) (small/medium/large) Treasure chest (宝箱) (small/medium/large) Return directive/order (帰還命令書, 帰還司令書) Challenge (挑戦状) Trap detector (罠探知機, 罠探知機・改) Danger detector (危険探知機, 危険探知機・改) Excavator (掘削機, 掘削機・改, 深海掘削機) Clover (よつばのクローバー, 黄金のクローバー) (4 leaf/golden) Compass (高価な羅針盤, 伝説の羅針盤) (expensive/legendary) Blue searchlight (青い探照灯) Mast (銅のマスト, 銀のマスト, 黄金のマスト) (copper/silver/golden)
Equipment category selection screen at development screen
In-game message sprites 離脱成功 (Withdrawal success) is what is currently shown with 100% chance (but in smaller print) after day battle, on the top left hand corner of the screen that asks you whether to continue into night battle or not. 離脱失敗 (Withdrawal fail) message might indicate some form of forced night battle was once being considered. 敵艦隊に逃げられた (Enemy vessel fled) message indicates that some kind of mechanism disallowing players from entering the night battle phase might have been brainstormed before. 敵直援戦闘機が妨害 (Obstruction by enemy interceptor aircraft) is a message found together with other statuses for abyssal fleets in the detection stage.
Messaging system
Sortie node events When reaching a node, certain events can occur: Whirlpool: 司令官！うずしおが発生しました！ Huge wave: きゃーっ！！　高波が発生しました！ Bad weather: 悪天候でこれ以上は進めません。 帰還しましょう！ (We can't advance because of the bad weather, let's go home!) 前方に悪天候が発生していますね。 迂回して進むことにしましょう！ (We see bad weather before us. Let's take a detour!) Octopus: おや…大きなタコさんが何かを持ってきましたよ！ (Oh, a big octopus is carrying something!) In Kancolle RPG, a TRPG edition of the game, bad weather is preserved and can be avoided with a radar.
Unused fairies

• Gold Coin (presumably to show how much DMM point that player have), more detailed stats for kanmusu, abyssal different levels (just like PvP):
  • See early screenshots released on numerous sites like those reposted by http://kanmusu.blomaga.jp/articles/53681.html and http://www.4gamer.net/games/205/G020591/20130228067/