ハクスラとは

https://en.wikipedia.org/wiki/Hack_and_slash
Hack and slash or hack and slay (H&S or HnS; also can be stylized in a hyphenated form as in hack-and-slash, or with a contracted conjunction as in hack 'n' slay) refers to a type of gameplay that emphasizes combat.
The term "hack and slash" was originally used to describe a play style in tabletop role-playing games, carrying over from there to MUDs, MMORPGs, and role-playing video games.
In arcade- and console-style action video games, the term has a different usage, specifically implying a focus on real-time combat with hand-to-hand weapons as opposed to guns or fists.