Essentially a twin stick shooter with auto-lock to whichever enemy is closest... so, a single stick shooter?
There are different mechs that have slightly different playstyles. Dealing big damage relies on switching between characters to build up your combo meter to unleash special attacks.
I've been playing the Bilibili release, and although very enjoyable, the game is sadly unstable and frequently unable to remain connected to the server, resulting in timeouts and errors.
Great game marred by unreliable service