K9 must chase the remote-controlled spider droids through maintenance corridors and deactivate them before they shut down the sun filters. To save everyone, K9 will then have to get past the giant revolving fans and switch on the sun shield.
Sneak past the Slitheen in 10 Downing Street and switch off the advertising beacon which is offering the planet Earth as scrap. You'll have to destroy the Slitheen commander before you can shut down the advertisement.
The plague-infected human lab rats have escaped and are rampaging through the corridors and wards of the New EarthHospital. Collect 5 different coloured vials of vaccine to create a supercure. Plug that into the hospital fire sprinkler system to save everyone.