"A Keyblade would definitely be useful here right now!"

Sora's main experience with time machines had been the doorway to the past that Merlin had created, and in his experience you could either lock or unlock those things...they weren't really something you could find a "vulnerable point" on.

"We could, but I dunno how...and what if in trying to break it, it just made the problem worse? Or did something else? I don't know how those machines are run."