You likely will have spied some blue rocks while exploring the continent in Clair Obscur: Expedition 33. These Paint Spikes, as they're actually known, often block secret routes and treasure you can claim, but first you have to unlock the upgrade that lets you break them. Bad news, too, this upgrade isn't on the main path. Instead, it's the reward for an optional quest, so it's possible to miss it entirely.
If you're here looking for how to get past the blue rocks on the overworld map—these are different from paint spikes—you'll be able to do this once you unlock Esquie in the main story, so just keep on progressing. Otherwise, here's how to get the upgrade that lets you break Paint Spikes in Clair Obscur: Expedition 33.
