Orange enzyme bullets

 are hazards in Test Subject Blue. are the fifth Orange Enzyme introduced in Test Subject Blue. Orange Enzyme Bullets have consist of a dark orange sphere with an orange circle and an orange ball inside the circle. are fired from ceiling planted Proton Canons and Detection Proton Canons, each of which have an infinite mount of the Bullet.

are actually the first type of Orange Enzyme introduced. When the Orange Enzyme Bullet is fired,it starts off as a flash of Dark Orange and turns into the actual Bullet, traveling in the direction it was shot. The Bullet will explode once it hits a wall or Blue. It is not known if the Bullet will not harm all other types of Orange Enzymes, as Blue is known to posses a Blue Enzyme variation of the Orange Enzyme Bullets in his Mechanical Suit.

Orange Enzyme Bullets are lethal to Blue and will instantly kill him if they even touch him. Orange Enzyme Bullets, like everything in Test Subject Blue, will go through Green Teleporters if fired through, and will still maintain the same affect it always did. Orange enzyme Bullets are the only used hazard ammunition in Test Subject Blue.

Trivia

 * Blue uses a reverse-engineered version of the Orange Enzyme Bullets, firing Blue Enzyme Bullets instead.