Chili peppers

Chili peppers are a food favored by the mules. They are extremely spicy, and can even cause pain if they touch the eyes or tongue. The mules used these to torment the local human population before First Squad arrived to stop them. The mules refused to surrender without a competition, which consisted of eating the most chili peppers. During this time, it was discovered that the chili peppers had a strange effect on Mighty Ray's eyeballs, causing his lightning to turn red and making it harder to control, but also making it much stronger.