If you're referring to a volleyball technique or strategy, "mucchi muchi" doesn't directly translate to a known technique in volleyball. Similarly, "kahogo" and "mamasan" don't correspond to standard volleyball terms. "Volley new" could potentially refer to a new style or approach to volleyball, but again, more context is needed.
: The game is fully voiced and features high-resolution (1280x720) art typical of Studio Ebisu's "mother-con" titles. kahogo na mama to mucchi muchi mamasan volley new