in what way did it get into pop culture?
Space Invaders themed merchandising and the Space Invaders Tournament establishing video gaming as a mainstream hobby
Space Invaders
There has also been "Space Invaders-"themed merchandising, including necklaces and puzzles. The trend continues to this day, with handmade sites like Etsy and Pinterest showcasing thousands of handmade items featuring "Space Invaders" characters.

The game—and references to it—has appeared in numerous facets of popular culture. Soon after the game's release, hundreds of favorable articles and stories about the emerging video game medium as popularized by "Space Invaders" aired on television and were printed in newspapers and magazines. The Space Invaders Tournament, held by Atari in 1980 and won by Rebecca Heineman, was the first electronic sports (eSports) event, and attracted more than 10,000 participants, establishing video gaming as a mainstream hobby. 
who developed space invaders? Tomohiro Nishikado are there any sequels of the game? Yes. Space Invaders Part II and Space Invaders II who composed the game's music? UNANSWERABLE
wiki:13496247
Space Invaders [SEP] In popular culture
Many publications and websites use the pixelated alien graphic as an icon for video games in general, including the video game magazine "Electronic Gaming Monthly", technology website Ars Technica, and concert event Video Games Live. There has also been "Space Invaders-"themed merchandising, including necklaces and puzzles. The trend continues to this day, with handmade sites like Etsy and Pinterest showcasing thousands of handmade items featuring "Space Invaders" characters. The game—and references to it—has appeared in numerous facets of popular culture. Soon after the game's release, hundreds of favorable articles and stories about the emerging video game medium as popularized by "Space Invaders" aired on television and were printed in newspapers and magazines.