Puyo Puyo Tsu (Genesis)

The second game in the Puyo Puyo series. Its addition of the rather simple offset rule pretty much changed the way we play the game, and is still affecting us today...

Extra Options
On the main menu, move to the Options item (farthest right) and hold C on Controller 2 until the Options screen shows up. An extra "BATTLE MODE" option will appear in the I/O Test menu, which can be set to either Sensyu or Point.

There is an additional screen of options ("MODE SELECT"), however the game does not provide a way to enter it. You can, however, force yourself in by accessing the option after the last option in the list, and you can have the game let you scroll to that invisible option with code. The yellow puyo cursor will move to the right of I/O Test when that option is selected.

Some of the options appear to no longer do anything or are reset when leaving the options screen.

Sound Test
There are several unused voice clips, music, and many sound effects found in the sound test. Most of the music would be used in later versions of the game like Super Puyo Puyo Tsu. Most of the voice clips and sound effects, however, are removed from later versions entirely.

Unused Music

 * - Victory of Puyopuyo, the "game complete" theme of the original Puyo Puyo.
 * - Used in later versions as the normal ending music; it is also shorter than later versions.
 * - Used in later versions as the secret ending music.

Unused Sounds
Sound:

21 22 23 24 25 26 28 29 2A 2C 2F 32 33 34 35 36 37 38 39 3A 40 41 42 43 44 45 46 49 4A 4B 4C 4D 4E 4F 5E 60 64 65 66 68 6A 6B 71 77 78 79 7E 85

Arle

 * - "Hidon", a spell used by Arle in some of the Madou Monogatari games; it would have likely been used as another voice clip for Arle's chains.
 * - unknown
 * - Sounds like "sleep" in Engrish; perhaps it would have been used as another voice clip for Arle's chains?
 * - unknown; perhaps it would have been used as another voice clip for an opponent's chains?
 * - unknown
 * - "Ikkimaasu", used in later versions before the start of a match.
 * - unknown

Other Characters

 * - Voice clip for Zoh-Daimaoh; perhaps an alternate losing clip?
 * - Voice clip for Minotaur.
 * - Voice clip for Rulue.

Sixth Color
According to the routine that handles color bonus scoring, a sixth color is coded in the game, but is not picked by the randomizer due to a hard cap. It appears as a green puyo, but will not connect to normal green puyos.