Simplify the following text for a Grade 6 native English-speaking person.
Original: They are making a Jak and Daxter game , called Jak and Daxter : The Lost Frontier , for the Playstation Portable . It will be the first Jak and Daxter game not made by Naughty Dog , who are also close friends of Insomniac Games .
Simplified: They are also close friends with Naughty Dog and worked on Jak and Daxter : The Lost Frontier for PSP and PS2 .