Protoboy by FreezingMist on DeviantArt

Protoboy, Robotboy Wiki

Protoboy, Hate Sink Wiki

Protoboy v. Atlas (Robotboy v. Astroboy) : r/DeathBattleMatchups

robotboy

Robotboy-W [HyperActivation!!] by TindyFlow on Newgrounds

Gmod] Robotboy vs Protoboy : r/robotboy

Protoboy by MissMargoStarr11 on DeviantArt

What if protoboy was fixed by a random professor after he turned evil? (Credit to kindah_is_here_UwU for this) : r/robotboy

Protoboy and Protogirl Dont like you by KatMaz on DeviantArt

Prime Video: Robotboy