The song was written by Apollo, Maye, and Najai Washington and produced by Pharrell Williams and Chad Hugo of The Neptunes.

[8] Lyrically, Apollo sings about material wealth and "living the fast life, yet constantly craving physical connection from that special somebody.

"[9][10] The song is noted for having "tongue in-cheek" and forward lyrics about sexuality and queerness, with Apollo bragging about boys and girls lusting over him.

"[7] Tomás Mier of Rolling Stone commented on the production and lyrics of the song saying, "With its bouncy Neptunes beat, flirty, bilingual lyrics, and effortlessly catchy chorus, “Tamagotchi” is a perfect example of the qualities that have made Apollo, one of the most exciting artists of his generation.

[14] Cora Jordan of Clash commended the song's ability to show Apollo's versatility calling it "punchy and jam-packed" and stating that it "clearly shows his range in sound, stepping away from the slow and sultry tone that reflects much of the album and blending into an upbeat, hard-hitting flow.