~1963 ホイホイテスト (Hoi Hoi Test) by 東京中機 (Tokyo Chuuki)

Name: ホイホイテスト (Hoi Hoi Test)
Year: ~1963
Company: 東京中機 (Tokyo Chuuki)

I believe that this is original version of Hoi Hoi Test.  Note: The game does not say "Hoi Hoi Test" on it, but that is written on some of the advertisements.  I have only seen machines that have the Japanese title ホイホイテスト on it.

According to an article in Amusement Journal 2015-11, Hoi Hoi Test was discussed amongst 2 other machines that were built by 東京中機 (Tokyo Chuuki) before the company became 日本遊園設備 (Japan amusement park equipment) in early 1964.  While this game might have come out as early as 1960, we do not currently have any evidence to say this machine was first made before 1963.

The photo above is from this photograph:

I have forgotten the source of this photograph.  I apologize.

Here is a cleaner, though black and white, photo of the machine from an advertisement:

The game has a 5x6 grid (30 buttons) and you have to press them in a given order.  I am unsure if it is a memorization game or a speed hunting-style game.

This model also appears in the 1966 Senyo Kogyo machine catalogue:

After at least 3 machines, 東京中機 (Tokyo Chuuki) became 日本遊園設備 (Japan amusement park equipment).  2 newer versions of this machine, with a solid base, were released between 1964 and 1969.