BioVal Vc is a shape-matching reflex game where a target form is shown and several shapes appear on screen. Tap the one that matches the target exactly to score and advance. Tap any wrong shape or fail to answer before the timer expires and the run ends immediately. New targets and layouts refresh each round, keeping visual recognition sharp under pressure. Similar shapes sit nearby as distractors, so careful inspection beats rushed tapping. Correct picks chain into faster rounds with shorter decision windows. Zero tolerance for mistakes makes every tap meaningful. Simple presentation keeps focus on shape comparison and timing. Great for quick brain-training sessions with strict one-strike rules.