Quantum Conundrum is a first-person perspectivepuzzle hybrid game in the same vein as Portal, of which director Kim Swift was a creative lead.The player character is the 12-year-old nephew of Professor FitzQuadwrangle. When he drops by for a visit, his uncle disappears in an explosion. It is up to him find Fitz through the use of the Inter-Dimensional Shift Device (IDS device), which can move him between dimensions and affect the physics of the world around him.It was released on June 21, 2012, for the PC, with console releases later on.
Actor Allusion: John DeLancie playing another character with the letter Q as part of his name.
Bittersweet Ending: You save yourself from dying when the mansion collapses, and the professor escapes, but now you're trapped in the pocket dimension, and the whole world is being shifted by the Uber IDS.
Book Ends: The generator room in the first wing (The End of the Beginning) and the generator room in the last wing (The Beginning of the End)
Brick Joke: At one point, the Professor warns you not to look at Ike in the eyes. Upon completing the game, you unlock the "Do A Thing!" option on the title screen, where you get to see what happens if you do...
Bullet Time: Slow-Mo slows time to a crawl, and lasers that shoot out of the wall can be seen slowly leaving their gun, allowing you to dodge past them before the laser reaches its target.
Clone Degeneration: Though it doesn't come up in gameplay, this is a limitation of DOLLI. It can be seen with the effect on each successive generation of the Professor's cloned cat. To quote the Professor:
I want to clarify that Dolli is great for cloning inanimate objects, but she's not entirely capable with organic ones.
Damn You, Muscle Memory: Portal players will kick themselves every time they try to use something and shift dimensions instead. The 'E' key, which tends to be linked to Use in any modern FPS, is the Fluffy dimension hotkey. Use is instead done by left mouse click, which is commonly associated with shooting something. It's softened somewhat by the HUD having a constant reminder of which buttons are used to shift dimensions.
Doing in the Wizard : Quadwrangle jokes about the possibility that the Inverted Dimension doesn't use an opposite sense of gravity, but instead the mansion is simply upside down. In the epilogue, the mansion falls off the cliff and ends up upside down.
Dungeon Bypass: Top speed runs often involve exploiting the game environment to bypass entire portions of some levels.
Easy Amnesia: Professor Quadrangle forgot the events leading up to his getting trapped in a pocket dimension on account of suffering a bump on the head when the explosion happened. Thankfully, that's all he's forgotten.
Evil Laugh: Professor Quadwrangle engages in a typical Mad Scientist laugh, for no other reason than he felt like it and thought his nephew was expecting it.
Exact Words: Fitz Quadrangle's first great scientific victory, his science fair project, 'The Effects of Radiation on Things'. Not as childish as it sounds: Things was the name of his pug.
Extreme Omnivore: Ike's dietary requirements include, among other things, several kilos of meat a day, asparagus, scrap metal, and "whatever else he has a craving for, really."
Quadwrangle: Ike says he found your luggage in the lobby. And he would like to apologize for eating your pants.
Fantastic Aesop: Prof. Quadwrangle hypothesizes that the reason why tigers are going extinct today is because people are going back in time to when tiger-hunts were legal and shooting them.
Game-Breaking Bug: Game physics are tied to frame rate, which means any drop can cause unpredictable physics glitchs. These glitches can make some tests completely unsolvable. In particular, any test which requires stacking objects can result in said objects tipping over in mid-stack, ruining whatever puzzle they were a part of.
Gotta Catch Them All: There's a couple dozen tiny robots, identifiable by the atomic ring pattern surrounding them, that the player can collect. There's also four blueprints, one for each dimension, which unlocks the use of those dimensions in the sandbox level accessible from the main hall.
Gravity Master: The Fluffy and Heavy dimensions serve this purpose, making objects ten times lighter or heavier, respectively. Notably, they don't affect momentum; a Fluffy safe thrown in the air will retain its momentum if made heavier in the normal or Heavy dimensions, a vital aspect of solving puzzles.
I Fell for Hours: The last level has a straight drop down a giant tube that takes about a minute to finish. Thanks to the malfunctioning Uber-IDS at the bottom, this can become even longer if the garbage in the tube is caught by Reverse-Gravity and drags you back up with it.
Kick the Dog: There's an achievement, "Big Meanie", for knocking Ike over with an object.
Lampshade Hanging: Professor Quadwrangle acknowledges the implausibility of a wall fan somehow managing to pin a fluffy safe to a wall with enough force to support your weight when you use it as a platform.
Loophole Abuse: The buttons are pressure-sensitive. While this is meant to keep fluffy cubes (or other normally heavy items) from triggering them, stacking enough fluffy objects onto a button will trigger it, since the weight adds up.
Punny Name: "Quadwrangle" is a pun on "Quadrangle" (a four-sided polygon) and "wrangle", appropriate given that he's created the ability to shift between four alternate dimensions. Another relative has the last name of "Triwrangle."
Reality Ensues: Quadwrangle and Ike went to the 19th century because everything was more elegant back then. Then they left because they had to cope with contemporary hygiene practices.
Required Secondary Powers: Quadwrangle's main inventions (the jetpack, the freeze ray, the glove) all have the ability to act as a mode of transportation, possibly justifying the bizarre platforming elements of the game.
Selective Gravity: Justified. Since the IDS prevents the wearer from being affected by dimensional shifts, the player experiences gravity normally in the Fluffy/Heavy/Reverse-Gravity dimensions.
Self-Imposed Challenge: Each level has a goal for time, dimension shifts, and lack of deaths. Certain ones also have collectibles, which the level select screen helpfully points out. They don't necessarily need to be done together, though all of them are doable as such.
Sequel Hook: The entire world is being affected by the Uber IDS, and Professor Quadwrangle is about to set his mind to both solving that problem and getting the player character back from the pocket dimension.
Shout-Out: One of the Professor's time-traveling portraits shows him in future "space" clothes, and also wearing Adam Jensen's trademark shades.
Professor Quadwrangle has a story for almost every portrait you look at. A jet pack was named "Joan the Jett Pack" (after Joan Jett) and a digging machine was called "Everyday I'm Shovelin'". There are also many pictures of a dachshund that extend over multiple paintings: it was the first ever rubber dog, and he named it "Angstrom," following that up with a mention of a stretchy rubber toy from the 80s (aka Stretch Armstrong, which actually had a sausage dog version as well).
The Steam product description, in explaining the premise, helpfully notes "There's a dimension for that!"
The DLC No Disassemble! trophy is a shout out to Short Circuit which is also the name of another DLC trophy.
When changing to the Heavy dimension, which also turns everything metallic, half the portraits are depicted in heavy metal garb.
Professor Quadwrangle describes the dimension he's trapped in as containing things like cell phones, and the clouds in the sky are apparently made of lint. It's a PocketDimension.
Stupidity Is the Only Option: The Professor's memories start to return, and just as he starts to realize what it is you shouldn't be doing, instead of giving him a moment to warn you, you finish turning on the uber-IDS and plunge the world into chaos.
Sugar Bowl: Fluffy dimension, which renders objects much lighter than they are normally, makes everything white and soft. The pictures also become more childlike, such as having those depicted wearing cat costumes and other funny things.
Trial-and-Error Gameplay: Some of the puzzles are like this, especially since screwing up on most of them will end in your death. One particular test requires exploiting Slow-Mo to have an object above you fall below you so you can land on it mid jump, which a lot of players won't immediately catch on to.
What the Hell, Hero?: Professor Quadwrangle will call you out whenever you start breaking things in his mansion. Played for Laughs, of course, since many of the puzzles require vandalism.