Moahahaha, I love that toy! :)

As far as this poster-parody/homage thing goes I think Nikes spoof here is perfectly legal. But I am not a lawyer.

Who isn't confused at this point mate? :)
I know I am. Here's what's happeend in Days of our creative network so far: John Hunt worldwide creative director has talked the fancy pep-talk that every team in the TBWA network is worthy to work on every worldwide client - allowing them to 'stretch their creativity on an international level' and all that jazz.
Then, inspired by pep-talk, TBWA South Africa pitches these two spec ads (done and paid for by TBWA SA who believed in the idea so much) to PS2, and gets them approved North American head office, as that's the market at which the ads were targeted. Great!
Now TBWA london "as custodians of the Sony Playstation account worldwide" says thes two ads can't compete anywhere. Weirdness!
Also worth noting is that John Hunt, the worldwide creative director of TBWA Hunt Lascaris is also the Jury President of the Film category at Cannes this year. Anyway, seems that I agree with Matthew Bull;

Lowe London CEO Matthew Bull, however, is seldom shy to share his views: "Networks are all about sharing ideas, that's what global clients pay for," he says, adding that it's in the network's best interests to first consider what is in the client's best interests.