Maze games are always fun and Mazes Puzzles UWP for all Windows 10 phones (and tablets/laptops) stays very phone-friendly by keeping the grid size sensible, while the various level packs add interesting variations to provide you with greater challenges. 

From the Store description:

Mazes Puzzles is a classic maze/labyrinth puzzle for kids and adults with fun tweaks and surprises. Maze has 6 categories: Classic, Enemies, Ice Floor, Darkness, Traps and Time Trial. Guide the dot through different routes in this free maze adventure. Run, explore and find a way out through the intricate walls.

Here's the game in action:

One of the classic mazes - swipe to move and the ball carries on in that direction until the next 'decision point'; (right) the various level packs/variations...

Screenshots from the 'Enemies' and 'Darkness' packs - self evident and both rather more challenging than the early Classic levels!

The game is a free download here in the Store and well worth grabbing, for those bored train, plane, or queueing moments....

(Discovered through MyAppFree)