it does sound "romantic and lovesick" and uses sounds that emulate these feelings. At the same time, the album also feels "expansive and lonely, like someone staring at the night sky in solitude". Era Extraña also contains the same unsteady synth riffs, filtered drums, and vocal hooks as Psychic Chasms, with the addition of crunchy, fuzzy guitars; thick analog synths; and a lot of reverb, as well as much clearer production. Songs Era Extraña is connected by three brief, wispy instrumental interludes: "Heart: Attack", "Heart: Decay", and "Heart: Release". "Attack" opens the album "like a 200-foot-tall Game Boy loading up", according to Cooke. It starts with the sound of 8-bit particles coming to a "celestial boil" in the first few seconds, followed up by "what the birth of the universe must have sounded like had the Big Bang occurred inside the original Nintendo Entertainment System", according to Paste critic Wyndham Wyeth. "Decay" starts the "it-has-to-get-worse-before-it-gets-better" phase of the post-breakup period that is explored on Era Extraña, while "Release" ends the album with relief, yet also a fearful first step forward from a breakup. Heather Phares of AllMusic said that out of all of its songs, these three tracks, along with "Future Sick", sound the most similar to Psychic Chasms. Fitzmaurice found "Polish Girl" to be similar to the song "Reunion" (2004) by Canadian band Stars, seeing a resemblance to its theme of someone trying to recover, and yearning for, young love. Palomo asks questions in the song that are likely to be unanswered, such as "Do I still cross your mind?/ Your face still distorts the time". Cooke noted the "dazzling syncopated pulse" to be similar to the coin sound effect in games from the Mario series, while observing melodies that "splash and slide around sickly-sweet flurries of arpeggios and a family-friendly feel-good beat". Parry Ernsberger of Blurt said that the song includes what sounds like samples from the game Super Mario World (1991), and has the "euphoric energy" of Cut Copy's album Zonoscope (2011). Beats Per Minute writer Aurora Mitchell said the song "sounds like 80s disco distorted through an old computer", while Phares noted the song sounds more like Palomo's other project Vega than Neon Indian. "The Blindside Kiss" includes elements of alternative rock, grunge, and garage rock. Club Fonograma writer Blanca Méndez said that "The Blindside Kiss" is about the "staying-at-home-and-staring-at-ceilings early stage" of a breakup, which