"Frenetic action" refers to a very fast and chaotic movement or activity. It suggests a situation where there is a lot of energy, urgency, and excitement in what is happening. Full definition
The ability to buy equipment reminded me a bit of zombie mode from the Treyarch CoDs, but with the fast frenetic action of real infantry and attack dogs. (thatvideogameblog.com)
JoyJoy is an attractive and fast - paced shooter that delivers frenetic action in a crisp, clear, and consumable fashion. (appspy.com)
All of this is relayed to the audience, via Henry, in explosions of exposition that are tossed in between frenetic action sequences. (consequenceofsound.net)