Is there a good Android puzzle game with simple controls but challenging levels?

Gear Truck! is an accessible puzzle title built around sliding block mechanics. Players navigate tiles to guide a truck to its goal, a concept that's simple to grasp but grows increasingly complex. The game's primary appeal lies in its escalating difficulty curve, which transitions from gentle introductory puzzles to demanding boss stages that require precise sequencing. Specific features like varied tile types—including the noted '-1' tile that has caused some players progression hiccups—introduce distinct logical hurdles. For real-world use, this structure suits short play sessions, such as during a commute, where a player can tackle a few puzzles at a time. However, reviews indicate a recurring technical flaw where intermittent ad integration can sometimes force a game restart, potentially disrupting a run's progress. Despite this, the core puzzle design remains engaging for those seeking a mental challenge without overcomplicated rules. The visual presentation is clean and functional, keeping focus on the gameplay. While not without its bugs, the game delivers a solid dose of brain-teasing content for puzzle enthusiasts looking for a mobile challenge that respects their time.