The Arcade version runs on the Sega's ST-V hardware. The Sega Saturn and Sony PlayStation versions have CD audio and mostly different voices. The Nintendo 64 version is what we're discussing here. It doesn't have the same CD audio quality, but it takes advantage of the Nintendo 64's sound hardware to be comparable to the Arcade original.
Story: Satan has conjured a spell to make the sun bigger and burn brighter. Resulting in Arle and Schezo feeling the sweltering heat. Draco doesn't mind the heat so she wears a bathing suit. There are three stories to tackle.
Easy: Draco's Holiday: As Draco Centauros, blaze your way through three easy opponents.
Medium: Arle's Adventure: As Arle Nadja, work your way through 13 opponents in order to put an end to Satan's evil plot.
Hard: Schezo's Counterattack: As Schezo Wegey, work your way through 8 tough opponents in order to break Satan's spell.
Arle and Schezo join up for a Puyo Puyo battle where the winner takes on Satan in order to restore peace to the island.
In a TAS, play Schezo's story on the Master difficulty.
I use the N64 'cause there no loading screens like in the Arcade. There's no voices during pre-battle cutscenes just like in the Arcade.
To start a TAS, play
this movie to fix the uninitialized SaveRAM as a workaround related to the SaveRAM bug in the emulator. After movie is finished playing and all data is erased to show the correct values, record from SaveRAM. Go to options, set difficulty to Master and turn off cutscenes, then choose your story.