W hen Johnny Galvatron was 14, his cousin gave him a copy of the Smashing Pumpkins’ seminal 1995 album, Mellon Collie and the Infinite Sadness. For Galvatron, a rambunctious teenager in Geelong who defined himself by his musical taste, it was love at first spin. “I don’t think there’s a track like Tonight, Tonight from any other band,” he reminisces. A song from the album plays at a critical moment in Mixtape, the second game from Galvatron’s Melbourne-based studio, Beethoven and Dinosaur. It’s a narrative adventure game about Stacy Rockford, a teenage girl in the fictional 90s American suburban town of Blue Moon Lagoon. Mixtape is set over a single day; tomorrow, Stacy will be leaving her best friends, Slater and Cassandra, and flying to New York as part of a reckless plan to shove a mixtape into the hands of a superstar music supervisor who will, she believes, be so convinced of Stacy’s genius that she’ll offer her a job.…