Challenge yourself with fun and easy OX quizzes every day in "Brain Stimulus OX Quiz." Your goal is to guide a group of characters through the challenges, ensuring as many as possible survive!

Within a 20-second time limit, swiftly move participants to the O or X side for each question. With rewards for correct answers, the character count increases accordingly. However, incorrect responses lead to penalties.

The focus is not just on solving problems but on preserving characters. Starting with three, it's possible to amass up to 500 characters with multiple rewards. Test your ability to gather characters and open all quiz level packs!