I bought "sled parts" from the store intending to save them for the ice field track, but I installed them in the wrong direction, causing the snowman to veer off course. Just as I was about to disassemble them, I discovered that the veerged route just happened to avoid the cracked ice surface and even triggered the "shortcut exploration" effect. A "Wrong Installation Pathfinding" pop-up appeared on the screen. It turns out that even a modification mistake can unlock a hidden track.