Helmet

Helmet is a Gold Series Game & Watch game released in 1981. All units report a model code of CN-07, but it was discovered that some might have the model code CN-17 on the inside, despite saying CN-07 on the back of the Unit.

The differences between a CN-07 Helmet and a CN-17 Helmet is that a CN-07 Helmet has a 2 players on screen glitch when executing a glitch when the unit is in time mode. If a Helmet Unit cannot do this glitch, then it's a CN-17 Helmet. Nintendo probably noticed this bug, so it looks like they made a CN-17 version of the game, but labeled it CN-07.

Gameplay: Players control a construction worker who has to get to the door without getting hit by the tools falling from the sky. Every time 3 tools hit the ground, the player gets 1 point. Every time the door is open, and the player goes through it, the player gets 5 points. The construction worker cannot go through the door if it is closed though. Getting hit by any of the tools results in a miss, and as always, 3 misses is game over. Misses are cleared at 200 and 500 points. In Game A, the tools will fall at the same speed, and the door will stay open for a certain time period before closing. In Game B, the tools fall faster, and the door will randomly open and close. A worker swings a bell when the alarm goes off.

Trivia: In Europe, the game was released as Headache, probably due to Helmet being an offensive term in Europe. Helmet is also playable in Game & Watch Gallery 2 and DSIware. In Super Smash Bros, when Mr Game & Watch dashes into his opponents, he does it with a helmet, the same one from this game. Additionally, the stages Flat Zone is based on Helmet, and Flat Zone X has a Helmet scene, despite Helmet was never a Wide Screen game. Helmet also appears as a Micro Game in 9 Volt's stage from Warioware. The alarm tone is also used in Parachute, Octopus, the Wide Screen version of Popeye, and the Wide Screen re-release of Fire.