Uncover hidden pixel art by coloring blocks based on number clues. This free logic puzzle game offers a variety of creative pictures and difficulty levels to train your brain and pass the time.
Reviews of Letter Gallery are mostly positive: the game is rated 4.7/5 from 3.4K App Store ratings. What users like most: addictive and fun, relaxing gameplay. Top complaints: glitches and crashes, lack of customization options. Summarized from real user reviews.
1.8.2
October 17, 2026
Bug Fixes and Performance Improvements
$4.99
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5 issues
Puzzles not loading correctly
Tracking/permissions issues
5 requests
Import own photos
More difficulty levels
Happy Pixel is a free nonogram coloring puzzle game where you discover hidden pixel-art pictures by coloring blocks according to number clues. It's designed to train your brain and provide entertainment.
You use the colored numbers as hints to drag the correct square or rectangle containing the exact number of cells. Filling these cells with the corresponding color reveals a pixel picture once all blocks are colored.
Yes, the game offers tons of completely free pixel puzzles. However, it does include in-app purchases and advertisements.
Yes, Happy Pixel is an offline game, so you don't need to worry about WIFI or data networks to play.
The game comes in four difficulty levels: easy, medium, hard, and expert, making it suitable for both beginners and advanced players of pixel puzzles.
