I played this game on Windows. I don't know of any differences to the PS1 version.
I'm not working on any project, just creating a topic here to write down what I know and to raise interest.
The goal is to conquer more tiles than the other players.
In single player, you are playing against 3 CPUs.
The level ends prematurely when all tiles on the board are conquered.
There are five "worlds" (Oceanic, Spooky, Space, Fun fair, Wild West) with nine levels each.
There is a "completed" movie after completing a world, and a credits movie after completing all worlds.
A run should play through all the levels.
Long play -
https://www.youtube.com/watch?v=zFM_waX2_3A
Speedrun leaderboards -
https://www.speedrun.com/live_wire
There are different items, such as a water wave looking one that will conquer all nearby tiles or a paint roller looking one that conquers all adjacent tiles that belong to a certain player.
The most interesting one is this special paint roller item:
Using it will convert all tiles on the board to your color, ending the level fast.
It appears in a certain pre-determined tile in a few levels, such as Space 9.
But it can also appear randomly at a very rare chance.
(I'm not sure if items are set at level start or when flipping a tile.)
Perhaps a TAS can manipulate this item to appear in every level?
You can play 2 vs. 2, which is done in some RTA runs (see the leaderboards).