Doraemon Synchro is one of those weird little Flash games that somehow sticks with you. A bunch of identical Doraemon robots are swimming in perfect sync—except one. Your job? Find the imposter before time runs out. Sounds simple, but when they start flipping and spinning, your brain starts second-guessing everything. "Wait, was that one slightly slower? Or was it just me blinking?"

It gets chaotic fast, especially when they switch directions or speed up. I kept tapping the wrong one at first, convinced I had it, only to watch the real oddball smugly float by untouched. The music doesn’t help—it’s this cheerful loop that somehow makes failing funnier. You’ll either love it or rage-quit after three rounds. No in-between.