User blog comment:Awesomesix/ERB Contestants Battle to the Death/@comment-26209006-20150303050537/@comment-25263388-20150303081353

"and their own physical capabilities"

- A6 in the Rules section

Then Goku at the very least gets his levels of SSJ, his ability to see other people's strengths, telekinesis and the ability to read minds with contact. Those are all powers he has as a Saiyan with training, as much as his martial arts skills, and they are completely unrelated to ki power, unlike instant transmission, spirit bomb, or Kamehameha.