iPhone iPad

FREE in the App Store

What is it about?

Using four keys to unlock boxes.

App Details

Version

1.2.3

Rating

Size

11Mb

Genre

Action Puzzle

Last updated

July 6, 2015

Release date

November 10, 2014

More info

Four Keys is FREE but there are more add-ons

$0.99

Remove ads

App Screenshots

App Store Description

Using four keys to unlock boxes.
And save aliens as many as possible.

[How to play]
1. Tap a key which colour matches with bottom most box.
2. When you unlock every 10th box, you can save aliens.
3. Tap faster, and more aliens will be freed as a reward.

Get it for FREE in the App Store

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