Mega (NES peripheral)

The Bandai MEGA^TM controller is a programmable unit released in 1987^[1] and officially licensed by Nintendo for play on the Nintendo Entertainment System. It includes a built in LCD screen that displays the active functions, and a built in game.

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  Bandai MEGA^TM Controller

The modes included are:

Mode	Purpose
MEGA Control Pad Lock	"Locks-down" Control Pad in any selected direction.
A & B Button Locks	To "lock" or "unlock" A and B buttons.
Rapid Fire Mode	Controls rate of firing for A and B Buttons.
Slow-Mo Mode	Slows down the game action.
Game 1 Mode	A built-in challenge game. This game challenges you to press the A and B buttons as rapidly as possible during a 10 second period. A score of 120 or more allows access to TOP SECRET MODE.
Arsenal Mode	Sets the amount of available ammunition (number of times you are allowed to press each button.)
Timer Mode	Sets the amount of time to play a game.
Memory Mode	Memorizes "password" sequences.
Top Secret Mode	A built in LCD game in which you attempt to catch falling blocks with an on screen character. The blocks fall faster as you catch them.

This controller was also released for the Nintendo Famicom with the name Super Controller 2^[2].

References

1. ^ Buy Game Controllers
2. ^ FAMICOMANIA