I'm on the last story of Sonic Adventure 2!

I managed to beat Crazy Gadget and Final Rush. Final Rush is a lot easier than Final Chase.

Thanks for the help on the Crazy Gadget color block puzzle the_kirby_addict!

Now I'm on the final story!

And I'm stuck on Knuckles' part of Cannon's Core. I managed to open the door using the time stop switch and then opening the door using the switch behind the red lasers, but Knuckles keeps drowning when I go through the underwater door :(.

I know who the final boss is as I've watched Sonic X, but I hope they aren't too hard!