Puzzle Pillars is an Extra Zone minigame that has you match colored blocks (4 or more) to earn points. My ideas for runs for the game can be: Fastest to 1000 pts, 5 levels (completed), 10 levels, 20 levels, and highest score. I think this would be a nice addition for this community. You need to get this minigame at the Fun Bazaar, then go to Minigame Wagon and buy Puzzle Pillars for 50 tickets. I have done a 1000 pts run and have a link here:
Personally I'm not too sure how well this works as a speedrun. First off it's very RNG, there is skill in seeing patterns but it's incredibly RNG based which wouldn't be a huge problem but the game doesn't have an end, it's more so a point based game which isn't really common on speedrun.com so I would possibly urge to saying get 3 or 4 more people to run it and I can put it on the boards but for now, I think it's too arbitrary. Hope this helps, thanks for the suggestion
If it does end up being added, maybe the category extensions would be a better place?