When it was clear the door wasn't budging, Sora backed off too, shaking out his hand. "I haven't seen any manual around..." he replied to Ven.

"I've seen this thing around before! And it's a time machine, so obviously it sends you back in time," he said, glancing back at Ratchet. A magic time door would be a whole lot simpler, but Sora figured it was still the same basic principle.

However, Sora frowned at that last bit. "I know my way around spaceships fine, thanks," he retorted. He wasn't stupid. True, it was Chip and Dale who did most of the actual maintenance on the gummi ship, but he at least knew how to fly those things.