On September 30, 2017, Magic Kingdom guests noticed that Disney changed the attraction's signage so it now says "Stitch's Alien Encounter Character Greeting!". Stitch's Alien Encounter, a meet-and-greet where guests meet Stitch in Stitch's Great Escape!'s first pre-show room, opened on October 2, exactly one year after Stitch's Great Escape! went into seasonal operation. However, Disney later updated the attraction's official webpage on or around November 1, 2017 to announce that the attraction will be reopening in late 2017, with the operating hours calendar showing that it will next operate from December 23, 2017 to January 6, 2018.
Amid a row of blinking monitors, begin your intergalactic training session with an eye-opening welcome video and discover what it means to be a guard with the Galactic Federation Prisoner Teleport Center.
Step forward and learn how the science of prisoner teleportation works from a helpful Audio-Animatronics robot named Sergeant.
A mysterious high-security Level 3 prisoner has been captured and is due for arrival! Because Level 3 aliens can be quite dangerous, make your way to the High Security chamber to assist with the incoming teleportation.
Inside, take a seat around a floor-to-ceiling tube. As the teleportation begins, the prisoner is revealed to be none other than the free-spirited Stitch, who naturally manages to break out of the transport chamber and wreak havoc throughout the room in the dark!
The experience, set before the first film, takes place in the Galactic Federation Prisoner Teleport Center. Guests have been recruited by the Grand Councilwoman to be guards for the Galactic Federation. After being taught the basic procedures of guard duty and the classification of prisoner hazard levels by a robot sargeant (and a brief, but comical, reprisal of Skippy from the ExtraTERRORestrial Alien Encounter), Captain Gantu gives an alert of a Level 3 prisoner being beamed to the Center. Guests are then instructed by Pleakley over an intercom communicator (off-camera) to proceed to the Level 3 prisoner teleportation chamber.
After being seated in the chamber, shoulder restraints (made to resemble scanning units for DNA) come down onto the guests' shoulders and the prisoner is then beamed into the chamber via a large plume of smoke and is revealed to be an enlarged Stitch. After a brief period of puzzled talking by Gantu and his two assistants, Stitch uses the flaws of the armed laser cannons (the cannons follow and destroy any genetic material, including saliva) and disables all power to escape, causing mass (happy) chaos in the crowd. During this period, hydraulic pumps and small hoses in the shoulder restraints make it seem as if Stitch is jumping on guests' shoulders and tickling their heads. When the power comes back on, the laser cannons continue their attempt to bring Stitch down. Again using the cannons' fatal flaws, he manages to fire the laser cannons into the crowd. Shortly after using the diversion, he escapes to Florida's Walt Disney World. Cameras capture him traversing Cinderella Castle before licking the camera lens. The audience is then released from their duty and exits into one of two gift shops—Merchant of Venus or Mickey's Star Traders.
The attraction includes much of the technology and sets from its predecessor, the ExtraTERRORestrial Alien Encounter, including the comical alien Skippy in the preshow area. The 39-inch Audio-Animatronic Stitch figure built by Imagineering reportedly is one of the most complex creations of its size. Other special effects include binaural sound, simulated laser cannons and a pungent smell (that of a chili dog, which lampoons the rule about bringing food and drink into the theater).
In the exit halls of the attraction, after the "Days Without an Escape" sign, there are three (previously four) "wanted posters" of other experiments written in either Tantalog or English (the former fourth poster was actually an ad promoting Lilo & Stitch: The Series on Disney Channel). The three wanted posters are those of 523/Slushy (in Tantalog), 222/Poxy (in English with name rendered as "Poxxy"), and 151/Babyfier (in Tantalog).
Before the attraction's opening, Disney released a downloadable game called Stitch's Escape Game to promote the attraction. It can still be downloaded from the Walt Disney World website to this day. (See external links.)