Why is crazy Dave so crazy?

Crazy Dave, a character from the "Plants vs. Zombies" video game series, is portrayed as eccentric due to his quirky personality and humorous behavior. His madness is often attributed to his obsession with plants and zombies, often leading to bizarre inventions and antics. This eccentricity adds a fun and whimsical element to the game, contrasting with the more serious theme of defending against zombie invasions. His character serves as comic relief while also providing players with valuable gameplay tips and upgrades.