Due to the nature of Guntz's childhood, he's allowed himself to become more of a loner. He is a very arrogant individual, as he looks down on those he deems weak. Thus, he doesn't interact with others very well. He also shown a duplicitous side as he made a deal with Garlen in kidnapping Lolo to defeat Klonoa in battle. Ironically, he was double-crossed himself and was nearly made a captive by the very man he made a deal with. When he realized his actions, Guntz showed regret and freed Klonoa and helped him in defeating Garlen though he said he didn't care, most likely out of pride. When getting to know him, he becomes shy and awkward around females, but is rational and cold towards males. However, he's shown to be a very loyal friend, even if he prefers to keep others at a distance. He's also been known to have a very short temper. In this game, he's shown to be a constant obstacle for Klonoa and Pac-Man in their Adventure.

He has an angsty tone with a heaping amount of snark.