2, was released on December 5, 2014, and features "latin bossa nova undertones and a more prominent punk-rock influence, creating a mélange of genres that work together harmoniously.

"[2] By 2014, Professor Caveman became popular in New Brunswick's basement scene, and they played at the college radio station, 90.3 The Core's 2014 musical festival Corefest.

3, "a super intriguing and borderline bizarre EP," adding that "the luscious, crisp guitar chords[,] melt, blend, and evolve into something else entirely; cryptic and fuzzy vocals mumble barely articulate lyrics with a South American flavor, wallowing into ever-changing bass lines and drum beats, all accompanied by a horn section.

[4] Bob Makin of The Aquarian Weekly says that "the jams 'n' grooves are as righteous as the rain[,] with its sweet Prince-like falsetto; frantic, driving beat; tribal backing vocals; nuanced keyboard and synthesizer flourishes, and smooth, yet sexy Steely Dannish guitar runs.

"[5] Adam Yawdosyn of The Rutgers Review lists the EP in his Best Songs and Albums of 2018, and calls Professor Caveman the "best band in New Brunswick.