For the Japanese speakers, here's the actual text for all our special techniques:

The new ones translate to Thunder Mojimi, Ultra Slap and Drill Fist
Curious to how they translate, and if it makes any actual sense in general Japanese or is still a pun.
One thing I didn't mention, was that using any of these also halves Hiro's health at the same time. So although they do crazy amounts of damage, they also hurt Hiro.
:edit: just unlocked some more.
The Drill Fist attacks more than one enemy at once, which is a god send in the later levels...