I have Aka (Fusion ade Abo and Kado), at the level of Goku MSSJ (CG), his attack amplifier, almost at the level of Perfect Cell.
The truth is that I have Gotenks in this Ova at the level of Gotenks (Pre).
I also have the multiplier of SSJ for Gotenks in this Ova of 50x its Base, to have:
Gotenks SSJ (Pre / Ova)> Goku SSJ3 (Boo) >>>>>>> Goku / Vegeta SSJ (Boo) >>>>> Gotenks Base (Ova)> Aka.
Also at the end of the Ova the narrator said that this threat came late in history, considering that it is not a threat for that time. Anyway Aka is more powerful than Piccolo (Ova).