6x37 - Dragon Ball Z: Dragon Box

The earthshaking battle between Goku and Boo continues. Trunks finally manages to locate the Dragon Radar, and Goku tells Boo that in two days, someone even stronger than he is will show up. Goku then leaves the area using his Instantaneous Movement. Babidi blames Boo for allowing Goku to get away, at which Boo takes a frightening, drastic measure!