Atari discusses the story element, a few more gameplay details in Centipede: Infestation

“My memory of it was ‘I need to stop this bug from coming down the screen.’ There was no story or reason. For the time, that was great. You meet up with Maisy, who has this almost magical power over flowers (and) is able to grow in what is otherwise this irradiated wasteland. You follow Maisy through this world and protect her. In this game, as you kill the different bugs, they drop everything from gun turrets and walled barriers to power-ups for the player. There are centipedes, and then there is ‘The Centipede.’” - Atari’s Jonathan Moses

I don’t know about you guys, but this seems like a title that should be downloadable to me. I bet that’s where it’ll end up eventually, on XBLA and PSN.

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