Line Master Puzzle comes from KAU, Inc.  The object is to fill the grid from start to finish. We've seen this type of game many times.
I did the 90 Normal levels very quickly. Maybe 15 minutes.

The 90 Hard levels had some interesting elements:
The arrows force movement to the end.
Wormholes. Figuring out which wormhole to enter/exit is key. A vertical or horizontal: the path must pass over that square and not make a turn.

I solved all the 90 hard levels and then the 90 Pro levels.  The Pro levels did not have any additional features. Drat.  But they were still fun.

Definitely a good game.
https://itunes.apple.com/us/app/line-master-puzzle/id1450932322"mt=8

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