Simplify the following text for a Grade 7 native English-speaking person.
Original: Video games developed by Japanese studio Nintendo Entertainment Analysis and Development ( formerly Nintendo Research & Development Team 4 ) , a division of Nintendo . Video games in this category have been or will be released exclusively on the Wii , and are not available for purchase or download on other video game consoles or personal computers .
Simplified: This is a category for video games released only for Nintendo 's Wii .