Media - Goku in One Piece

In a convention in Japan, a short movie was shown featuring Goku (and the other Z Senshi) teaming up with Luffy from One Piece to defeat Eneru (character from One Piece).

• Part One The first of the two part movie. I'll try my best to explain what is happening though you have to know I've never seen One Piece nor do I understand Japanese very well. >_<
  From what I can understand, the One Piece characters are talking. Then Goku comes out of nowhere (I have no idea why he's there XD) He starts yelling stuff. Then Eneru (I'm assuming who that is) and Goku start battling. Goku calls the Kinto-Un. Eneru tries to hop on the Kinto-Un but falls through. (Obviously he's not pure of heart.) The video then skips and we see Luffy on the Kinto-Un (Guess he is pure of heart ;P) and Goku beside him. In front of them are the villians I'm guessing, floating on something, I can't tell exactly what it is. Goku and Luffy then perform a very cool move (which I won't say because it'll ruin the surprise if you watch). Next you'll hear Kuririn call Goku and then Ta-da! Gohan, Piccolo, Bulma, Kuririn, Trunks, and Goten appear with the DragonBalls! Gohan says something and Goku responds back and I think he says, "Ah. Then arise Shenlong!" (But I could be wrong...) Shenlong appears says something and everyone says, "Bye!" End of part one.
  
  
  • Part Two
  Again, I do not know Japanese well. I only know a few words so take this info with a grain of salt. ;P
  This one was confusing so don't ask. XD Only thing I understood were the words Nani, Moshi-moshi, DragonBalls, Kinto-Un, Goku, and a few others. Basically Goku and Eneru (I'm guessing) fight and while they are fighting some guy is on the phone (I know because I hear him say, 'Moshi-moshi, moshi-moshi!'). Goku and Luffy team up again to do that very cool move (refer to Part One if you don't know what I'm talking about...). Eneru is defeated. Gohan and the rest show up again and call Shenlong. They wish for something (I'm not sure what), say goodbye once again, and the movie ends.