"With its music box sweetness and old-school key changes, "A Summer Thing" could be the Beach Boys' version of "Sloop John B" played backwards; "High School Lover" feels like an update on the songs that bands played in the middle of '60s beach movies, but when Yudin tells a girl she should have been his back in high school, it shows that not all of Cayucas' nostalgia is sweet. Cheery in the moment but with a lingering poignancy, Bigfoot is a soundtrack to shared memories of summer, first love, and all the bittersweet things that can happen when those two meet".