In - S E L E C T - screen, when you are "Registering your name" the B button (CTRL key) does not cancel.
Spotted as minor bug: B button doesn't cancel name entry in ZC [461]
This is intentional. Some people set up their keys so that a letter key (for instance, the Z key) is the B button. So, when they try to enter a name like 'Zelda' or 'Chaz', then the name entry is cancelled. Use the Esc key instead.