Trail Light is a no hand-holding, learn as you go, adventure puzzle game. It is the evolution of single line fill style puzzles with enough mechanics to keep 100 hand-crafted levels interesting throughout. This game is a great brain teaser if you are looking for a challenge. How to Play Tap the highlighted squares to move Fill in all the tiles with the correct color, and advance to the goal on levels that have a goal. You cannot walk over a fully lit tile.