MDonkey vs 7 Grid Up

【Not just a game, but an experiment in evolution】 Inspired by the famous "Ayumu Project" at Kyoto University. A chimpanzee named Ayumu demonstrated an eidetic memory capability that leaves most humans in the dust. It makes us wonder: along the millions of years of evolution, as we gained language and logic, did we lose some primal, powerful instincts? This app brings that legendary laboratory challenge to your phone. 【The Core Challenge】 Numbers flash on the screen and vanish in the blink of an eye. You must tap them in the correct order relying solely on your instantaneous visual afterimage. Eidetic (0.5s): Think like Ayumu. Challenge the limits of humanity. Average (2.0s): A starting point for most sapiens. Rote (10.0s): Take your time. For those who admit defeat (jk). 【Ultimate Experience】 To replicate the purest reaction test, we've optimized this app to the millisecond: Zero-Latency Audio: Built with iOS SystemSound API for instant feedback the moment you touch. Fluid Interaction: No superfluous animations to drag down your reaction speed. Minimalist Aesthetic: High-contrast black and white design to keep you hyper-focused. 【Secret Features】 Too hard or too easy? Try a LONG PRESS on the start button. Want to know the story? Try SHAKING your phone. This might be the simplest game on your phone, yet the hardest challenge you'll ever face. Can you reclaim your primal power?

Seven-Cell Battle is a minimal number puzzle: 7 cells, incoming number balls, add in a cell until the sum is 7 to clear it and trigger a chain (neighboring cells minus 1). Higher score shortens each turn; one wrong move can block the grid. Simple rules, tight tension, easy to learn and hard to put down. Why play: - Simple rules: sum to 7, chain clear, timed moves. Learn in seconds, play immediately. - Short sessions: each game lasts minutes. Perfect for commutes, waiting, or a quick break. - No forced ads: no full-screen pop-ups. You can optionally watch a rewarded video for an extra round after a game; you can also skip and still finish normally. - Local only: scores, records, and streak days are stored on your device. No account or internet required. - Privacy-minded: we only follow the system App Tracking Transparency prompt where relevant; other data stays on device. For anyone who likes number puzzles, chain-clear satisfaction, and "easy to learn, hard to master" single-player games. No sign-up, open and play.