Play very hard timing-based games online for free, no download: Lock Challenge, a really hard timing game for Android mobile phone, iPad, iPhone, Samsung Galaxy, tablet, PC....
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Really Hard Timing-Based Game for Android / iPhone / iPad / PC - Lock Challenge

Rating: 7/10 - 2 votes

Play a highly-addicting and challenging, multi-level, timing-based skill game where you must simply click or tap at the correct moment in order to unlock a virtual padlock! Lock Challenge is a very hard, reactions-based action game based on a simple concept where you must stop a rotating the white marker on a green (not red!) dot in order to break through the defenses of a standard padlock. The catch is that the locks become more complex as you progress – corresponding with the number of the level (For example, on Level 5, you must break through& 5 times in a row in order to fully pop the lock and move to the next level). Another difficulty is that the rotating marker increases in speed as you progress, so this becomes a very testing exercise to unlock!

This online, HTML5-based, timing skill game should work on iOS and Android devices as well as most web browsers for PC / Mac. Becoming a master locksmith in this game requires strong focus, patience, discipline, tactful mouse clicking / finger tapping, nimble hand-eye coordination skills, sharp reactions, perfect timing, great determination, persistence and stamina. Have you got all of those key skills in your locker?

Absolute precision is required here – as even the slightest miss means you must begin the level again. But take your time! Wait for what you feel is the perfect moment to make your unlocking move each time.

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