Board Thread:Questions and Answers/@comment-27785317-20160726174908/@comment-679780-20160727152221

Guys... guys stahp. This is Knuckles profile from Sonic Generations, a more later game than Sonic Unleashed. It prooves Sega has not reconned Angel Island from the games. Angel Island is still in the Sonic series. (In fact Angel Island was mentioned in Sonic Boom.)

The reason why it wasn't in Sonic Unleashed can simply be Sega overlooked it since Knuckles was not at all in Sonic Unleashed. Sonic went all around the world and only Tails and Amy were found. Team Dark were perhaps located in Central City at the time, so Knuckles may have been located on Angel Island at the time.

Remember kids! "Absence without evidence does not mean evidence of absence!"

We had an older discussion about it awhile bakc on Knuckles guardian duties in modern games.