TARDIS ( video game ) TARDIS is the third of the Adventure Games , a series of five games in which the player have the ability to play as the Eleventh Doctor and Amy Pond . Set mostly inside the TARDIS , it gave players a chance to explore the ship in a way not previously offered by any other DWU video game to date . Nevertheless , it was by far the shortest of the five games . It was also only one of the games for which Phil Ford received no writing credit . Instead , writing chores were handled by James Moran . Synopsis . With the TARDIS caught in a time riptide , it ' s up to Amy to save the day or leave the Eleventh Doctor trapped in the void forever . Meanwhile , a dangerous entity is roaming the TARDIS corridors and it hasn ' t been fed for a very long time . . . Plot . The Doctor and Amy are inside the TARDIS , discussing where they should go next for a more peaceful outing - which is nearly impossible , considering the Doctor ' s long track record of holidays failing miserably . However , the TARDIS suddenly enters a " space riptide " , and the Doctor is launched through the doors , out into space . After the TARDIS steadies itself , Amy looks outside and sees the Doctor hovering , still conscious and surrounded by a number of strange blue worms , a short distance away . Through sign language , he manages to tell Amy that he is slowly suffocating , and she can save him by resetting the TARDIS air shell by using the red levers . Amy does so and the Doctor uses an earpiece to properly contact her through the scanner , telling her to use the tractor beam to retrieve him . The console needs an outside power source for that , so the Doctor sends Amy to his drawing room to retrieve a power source for the beam . Searching through the many knick - knacks in the Doctor ' s drawing room , Amy is , at first , unsuccessful in finding anything useful for powering the tractor beam . Another riptide strikes the TARDIS , and the interior shaking causes one of the clocks to move , revealing a safe . Amy finds the Master ' s laser screwdriver inside , but accidentally knocks over a glass vase next to it . Thinking she can just replace it , Amy hurries back to the control room . Unbeknownst to her , a orange glow escapes the shattered pieces of vase and follows quickly after . . . After informing the Doctor via the scanner that she has found the laser screwdriver , the Doctor instructs her to insert it in the console . Doing so activates the tractor beam and the Doctor is pulled back into the TARDIS . The Doctor explains that the blue worms that had been pestering him are known as Chronomite s , somewhat harmless parasites , but they can make you " very itchy " . Unfortunately , the Entity , an old enemy of the Doctor that survives by draining years from others , has arrived in the control room . The presence of the Entity , along with another space riptide , causes the TARDIS to send Amy away . Amy is now in a future TARDIS with the Entity . Realising that Amy is in the TARDIS 1 , 000 years into the future , the Doctor sets about scavenging parts from the present TARDIS in order to create a tachyon feedback loop which will reunite Amy with him . The Doctor manages to scavenge three items from his drawing room ; his biodata module fob watch , an Oscillator from the distress beacon he picked up in the GSO Arctic Drilling Station and the Kontron crystal used to make a chronal blocker on Skaro ; using these , the Doctor is able to successfully make the feedback loop . In the future TARDIS , the Entity begins attacking Amy , feeding on her time . A time - activated recording of the Doctor appears on the scanner , telling Amy that she needs to answer some trivia questions in order to prove that she ' s herself ; then she can access and use the tachyon feedback loop to get back to her proper timeline . Amy answers the questions correctly and completes the loop on her end , allowing the Doctor to pull her back into the present TARDIS . Once the pair are reunited , the Doctor threatens the Entity - telling it to either restore Amy ' s time or be imprisoned again ( permanently ) after it has finished her off . The Entity retreats into another vase that the Doctor takes out , and the Doctor proposes a deal : he will release the Entity into the timestream , where it can feed off of the limitless supply of Chronomites - but only if it restores Amy ' s time . The Entity finds this to be acceptable and gives Amy her time back ; the Doctor then releases it from the TARDIS to fulfil his side of the bargain . Amy tells the Doctor that he forgot to mention that the Chronomites cause itchiness , but the Doctor simply says that he forgot ( possibly meaning that he wished to punish the Entity for its past deeds ) . The Doctor performs some checks on the central console , then sets course for Poseidon 8 , built in London ' s previous location , following the great flood of the 23rd century . Exiting the TARDIS , Amy is amazed by the underwater base that they have materialised inside . However , her amazement is quickly replaced by fear , as the pair notice a gigantic alien shark attacking the base and heading towards them . . . " Rest to be added . "