Context: The original model Famicom featured two game controllers, both of which were hardwired to the back of the console. The second controller lacked the START and SELECT buttons, but featured a small microphone. Relatively few games made use of this feature. The earliest produced Famicom units initially had square A and B buttons. This was changed to the circular designs because of the square buttons being caught in the controller casing when pressed down and glitches within the hardware causing the system to freeze occasionally while playing a game.

Question: How were the Famicom controllers attached to the console?
Answer: hardwired

Question: The second Famicom controller lacked START and what other button?
Answer: SELECT

Question: What did the second Famicom controller have as a unique feature?
Answer: microphone

Question: What shape were the A and B buttons on the earliest Famicom controllers?
Answer: square

Question: What shape did the A and B buttons eventually become?
Answer: circular

Question: How were the Famicom controllers unattached to the console?
Answer: Unanswerable

Question: The second Famicom controller lacked BEGIN and what other button?
Answer: Unanswerable

Question:  What did the third Famicom controller have as a unique feature?
Answer: Unanswerable

Question:  What shape were the D and E buttons on the earliest Famicom controllers?
Answer: Unanswerable

Question:  What shape did the E and F buttons eventually become?
Answer: Unanswerable