Crumbling tile is a tile found in Run 3.
Crumbling tiles first appeared in Run 3. They have a grey texture with cracks on them. They are a pretty common tile, as they are sprinkled throughout the various levels in both Explore Mode and Infinite Mode. The first level they are encountered in is Level 3.
In Level 3, you see some gray tiles with cracks. Those are crumbling tiles. You find out that unlike normal tiles, they fall when you step on them! Also, if you step on one that's in a group of crumbling tiles, the entire chain starts to crumble. This is implemented a lot in levels like Level 10.
If you use the Child, due to his lightweight and his balloon, he can walk on Crumbling tiles without crumbling them. They only crumble if he jumps on them. So, in Level 10, where it is made up of Normal tiles and Crumbling tiles entirely, he can win even if you leave it alone. That is why Child is best when a level has a large quantity of Crumbling tiles.
- Player 03 once revealed that Crumbling tiles were originally Normal tiles, but suffered against physical damage (coming from unknown sources). That is why they cracked and will crumble so easily.