Similar to the first album, Mammoth WVH (2021), all writing, vocals, and instruments were all done by Wolfgang Van Halen.

[2][3] His first album , written and recorded entirely on his own, was finished in 2018, but was not released until 2021, under the moniker Mammoth WVH, a tribute to one of Van Halen's early band names and his own initials.

[4] After touring in support of the release for over a year, Wolfgang turned his focus on recording a follow up album.

[8]Another common theme on the album was Wolfgang's reaction to negativity and toxic behavior he experienced online and on social media.

[9][8] Publications noted the album sounded similar to work of the Foo Fighters, Alter Bridge and the "variety of hard rock that was favored in the first part of the 2000s".

", which was written as the album's "mission statement", was given its name due an accident while recording the drum tracks where, when talking with a sound engineer, Wolfgang responded "Right?"

[10][14] Classic Rock praised the album as "scaling new peaks" and "better than Wolfgang's debut because it has more variety as well as better-quality songwriting".

[7] Ultimate Classic Rock praised the album's "starting-gun riffs, easily digestible lyrics and impassioned vocals" and concluded it was "a template for the future that doesn't disregard his past.

While the reviewer noted the album's constantly large sound sometimes dampened its impact, it still concluded that "Mammoth II remains, inarguably, a worthy follow-up to that equally muscular debut.