In Metroid Fusion, the Level 3 security door is colored yellow and any weapon can open it (after the security lock is lifted, of course). In Metroid Prime 3: Corruption, Multi-Lock Blast Shields are colored yellow in the key of the game map. In Metroid Prime Hunters, there is a Yellow-colored blast shield, but it requires the Volt Driver to open. In the original Metroid, a special kind of Blast Shield in Tourian is yellow, however, as Power Bombs didn't exist in Metroid, they can be opened by ten Missiles instead.