10 years later after Buu's defeats, Goku achieved Super Saiyan 4 form during the invasion of Baby. Soon after Omega Shenron's defeats the defenders of Earth found themselves into even in greater danger than before. A powerful foe named Bills invaded the Milky way galaxy (North galaxy). In case to eliminate the effects of other timeline, Bulma invented a time travel machine. Goku travels back to another time, 9 years before the GT time. There future Goku found that Bills is already on that timeline and the battle is almost begun. There "The Battle Of Gods" event took place. Future Goku saw the entire fight between SSJG Goku and Bills and impressed as well. Then Future Goku met the current Goku and the current Goku also impressed by future Goku's SSJ4 transformation. Then both Goku clashed together to gain the strongest SSJ title.
- Killing is not allowed. Only give up or Knock out (KO)
- Fight take place on Earth
- No planet busting
- No prep
- No spirit bomb
- No holding back
- No glass during battle (Don't bring DBGT Goku cut by glass topics - No glass weakness)
- SSJG = All the Canon feats of the series and BOG movie.
- SSJ4 = All the Canon and Uncanon feats including DRAGON FIST.