Knuckles: "Woah, Sonic! Did you see that? Goku just became a Super Saiyan! No chaos emeralds required, he's got some serious skills!" Tails: "It's amazing! Goku's training and determination seem to have unlocked his hidden power. He's tapped into his Saiyan potential without any external sources. Impressive!" Amy: "Well, I must admit, Goku's transformation does remind me of when Sonic turns into Super Sonic with the chaos emeralds. But this... this is something else entirely!" Shadow: "Hmph. Super Saiyan or not, the power that Goku possesses is formidable. It seems he has reached an unprecedented level of strength through sheer willpower." Rouge: "Who needs chaos emeralds when you have sheer determination and an indomitable spirit? Goku's achieved what many thought was only possible with the emeralds. Truly remarkable." Silver: "I've seen many incredible things in my time travels, but Goku's transformation is something else entirely. It just goes to show that true power comes from within." Cream: "Wow! Goku's become so strong, just like Sonic! This proves that we can accomplish anything if we believe in ourselves. It's really inspiring!" Big the Cat: "Froggy, did you see that? Goku became super strong without any emeralds! That's really cool, right, Froggy?" Espio: "Goku's newfound power is undoubtedly impressive, but let's not forget that chaos emeralds are unique to Sonic's world. Different worlds, different rules." Vector: "Whoa there! Goku just unleashed an untamed power that surpasses what I ever thought was possible. That Saiyan sure knows how to pack a punch!" Overall, the Sonic characters are amazed and impressed by Goku's ability to achieve Super Saiyan without the need for chaos emeralds. They recognize his incredible strength and view it as a testament to his determination and training, proving that power can come from within.