If he could talk, he would make a very moving speech about how the oppressed cockroach people will rise up and be liberated. Despite this trait however, Joey is frequently portrayed as "the brains" of the trio and is shown to regularly formulate new strategies. There are numerous other examples as well. Also, he is stated to think in black-and-white terms. After he ultimately retrogressed to his primitive personality, Dee Dee and Marky later found him tenderly gazing at Oggy. He is always devising new strategies in order to achieve his goals.
Esperanza. Age: 28.
Egotistical, vicious, belligerent, cynical and terribly sadistic, Joey is the "charismatic" leader of the gang.
Bianca. Age: 23.
Collection of Cockroach Pictures For Kids (52)
There are numerous other examples as well. One thing is clear: Joey hates Oggy. On top of this, Joey can bully Marky and Dee Dee in later episodes, yet he sees nothing wrong with this. His mind is a boundless source of new strategies to achieve those ends.