This is how our heroes defeat Sonic Sprinter in Ryan's Quest 2.
They are back in this World
Ryan: Hmm, I wonder what's going on?
They saw Sonic Sprinter running
They saw their friends coming
Ryan: Codylight? Look, we have no time, we have to catch that guy.
Codylight: I'm following him too.
Donald: Then let's go!
They went off and they found him
Sonic Sprinter: You caught me.
Ryan: What are you doing?
Sonic Sprinter: Spoiler alert. I was bluffing about my reforming. I don't want to rule Nevada. I want Cybertron and Equestria! And with my Heartless army provided to Vixyner, I'm going to get it!
Sora: We can't let you do that!
Sonic Sprinter: If you want to stop me, Roxas, then you have to fight me.
Evil Ryan: Let's do this, then.
They are fighting him and they defeated him and then he fading away
Sonic Sprinter: My spark is snuffed! I will have my revenge, Prince Ryan Prime and Roxas! Count on it!
Codylight: What was that? And who was Roxas?
Sora: Don't know, but we have to find their Stronghold and put an end to them.
Ryan: Don't worry, you're friends will be back after we defeated them.
Codylight: Ok. Goodbye and good luck.
They left this world