The Protective Armor is a red-painted layer of armor with a windshield on the upper edge that can be equipped on the front of Dr. Eggman's Eggwalker. When obtained, it increases the Eggwalker's defensive capabilities by increasing its Health Gauge by 1/7th of its original size. This allows the Eggwalker to withstand more damage before shutting down.
The Protective Armor is located in the Cosmic Wall stage. After climbing to the top of the first tower-like structure that leads to the Space Colony ARK, which is located after the second Star Post, the player must jump down into the other structure on the other side and land on the platform on the left in the upper corner. Once there, they will find a rocket which they must launch at the platform on the right. This will destroy the structures blocking their path to a platform. The Protective Armor can then be found on this platform.
- When playing as Tails and facing Eggman in the second battle, Eggman already has the Level Up Item.
- This is the only one of Dr. Eggman's Level Up Items in Sonic Adventure 2 and Sonic Adventure 2: Battle that does not have an equivalent with one of Tails' Level Up Items.