"Gundam Sentinel" took on a much more realistic, technical style of thinking and look at the "Gundam" universe, where mobile suits were seen more as fighter jets or military weapons. They were larger, had weapons more powerful than their predecessors', the characters were older, and the plot was on a smaller scale than what is usually found in other "Gundam" series. It also marked the debut of Hajime Katoki, who would become one of the franchise's most prolific mechanical designers. "Gundam Sentinel" is one of the most well known "Gundam" side stories to have been published, and is noted by Gundam fans as being one of the most mature stories in the franchise.