Probably supposed to emit shockwaves that disrupt the thought process and makes the enemy feel numb; kind of like hearing a sudden loud noise that makes you recoil. That or the myriad of bubbles exploding on SkullGreymon's body helps! XD
In fact, someone could probably say that their attacks work in conjunction with Lunamon's Lop-Ear Ripple and increase the rate of explosions further.
Oh, and I've been meaning to propose something for a while: since things are going episode by episode as of right now, perhaps we should save any "off-screen" interaction with Digimon and off-topic interactions with other characters for the beginning of episodes? As in, when a new episode starts, there can be an added segment before the real post for the episode to fill in the blanks of what happened between the end of the last episode and the start of the new one.
(Example: in my last post I had Haru convince Luna to use Lop-Ear Ripple by offering to reward her with letting her have whatever she wanted for dinner that night. It probably goes without saying that we don't want to hold the next episode up having to resolve this part (assuming that a day is going to go by between episodes this time; it might not if Fuyu decides that it's from the battle with SkullGreymon to the organization's base or what have you), but I personally want to progress further with that plot device for both the lulz and the development of Haru and Luna's relationship as partners.)
Is it necessary? Not really, but I'm going to do it anyhow. It might as well be optional. Can other people do this, too? **** no! None of you get to copy me!! Why not? It gives a more specific place to incorporate possible bond growth and may inspire ideas for the episode and/or the ones following.
... Not to mention I already thought up several "cutscenes" of interaction between Haru and Luna that I think are absolutely funny (at least to me ;p) and want to use in this RP. Can anyone say "Monster-movie hijinks?" ;p