* WhatCouldHaveBeen: According to WordOfGod, [[spoiler: you really would have fought the March Hare and Dormouse at one point, but development pressures forced them to cut it.]]
** Also likely to have resulted in WhatHappenedToTheMouse for a few characters in the game.
** The artbook also shows lots of concept art and details that not only describe what you see in the game, but a lot of it is stuff that should have been in it but didn't make it.
** Go to Website/YouTube. Search Alice Madness Returns Beta Trailer. It's full of old stuff and development things that were planned but never made it into the game, like a swimming level, new cutscenes, new weapons, actual gameplay in the London stages and a rather bloody Victorian scene...
** At least two levels were scrapped during development, one in a world based on Creator/MCEscher's work, and the other on the moon.
** One page of the artbook depicts scrapped ideas for being able to smash through barriers while 'dashing' in a run or swim. Directly underneath is a scrapped dress design featuring streams of horse hair and a spiralling horn on her forehead, so clearly ''someone'' at the studio was thinking of [[RobotUnicornAttack Robot Unicorn Alice]]!
** An example that ''also'' counts as a TakeThat: Reportedly EA was giving American [=McGee=] pressure to ramp up the levels of sex, gore, and general DarkerAndEdgier Content (to the point [=McGee=] explicitly described what EA was going towards as "Dante's Inferno + Alice") in the hopes that the game would get an "M" rating close to the dreaded "A" rating. He gave them Shock Content, all right--the "M-Snail", a deliberately NotSafeForWork monstrosity [[note]]consisting of a snail with, well, a ''penis'' as its foot/body and ''breasts for eyes''[[/note]] with a ''friendly'' reassurance that he'd make sure it made it in the game. Needless to say, EA backed down and ''quickly'', otherwise....
* TheWikiRule: It [[http://alice.wikia.com/wiki/Alice_Wiki does have one.]]
* TheCameo: It's possible to find [[VideoGame/{{Psychonauts}} Razputin Aquato's]] skeleton, complete with battered aviator's helmet, in the Queen's Castle, apparently having drawn a memory back out into the open. Apparently Alice's mind is just ''that'' rough.