What is the hardest part when creating a complete circuit in MKPC?

My hardest part when creating my track is filling the track with walls, off-road, and holes

Well it depends on what type of track it is.(Like Dry Desert hole were hard🤨)
Holes.
Why?because you have to align them along with the checkpoints, and if you don't.You have a horrible hole system.

For me it's the polygon outer walls, if you screw up, the track becomes the walls instead of the outer walls...

They don't really take that long, you just have to be precise


Generally, checkpoints are never an issue if you:

Always place respawns right before the hole
Have lots of individual holes
Don't have too many checkpoints
Make some checkpoints optional


Learn to eyes


Anyway I'd personally say the art itself, that being:

The track art
Decors
Backgrounds
Music (if you're making your own, which, not many people do so eh)

Thanks for the unhelpful tip that no one talks about...

It's a joke, it's not meant to be helpful. And I reiterate, learn to eyes

I would say it's the checkpoints and the holes, because they're so difficult to align.

Another issue is the checkpoints, for example, if you are already at checkpoint 2, if you fall into a hole before even crossing checkpoint 3, if you respawn after checkpoint 3, the lap won't count and you'll have to backtrack to checkpoint 3.

What i said. Don't make shitty holes.

Filling the track with walls and getting the right balance of off-road and holes can be a real challenge. It's all about finding that sweet spot where the track is challenging but still fun to play. I usually spend a lot of time tweaking those elements to make sure the race is exciting without being too frustrating.

Placing holes in the right places, and making sure the respawns don't make the player skip a checkpoint. And also placing enough decor on the track to make it look good. I still haven't mastered that last one yet.