The invasion leader, an emperor, pursues world control using monsters and demons.
The set also included brief guidelines on using monsters as player characters.
His goal is, of course, world domination which he attempts to achieve using various monsters and outrageous plot devices such as exploding treacle.
The brand is widely known for using Japanese animation style female characters and monsters on their products.
He originally wanted to use monsters who are notably smaller and less powerful than Godzilla, as his opponents.
In retaliaton, Pete vows to use the very monsters these men have rejected to destroy them.
In 2003, Schwartz was teaching one of his young daughters about number basics and developed a poster of the first 100 numbers using colorful monsters.
The Trio would often use monsters such as vampires and demons to assist them.
"Those two have always favored using monsters as fodder," he explained.
The previous governess had used various monsters and bogeymen as a form of discipline.