Slitherlink Puzzles are nice puzzle games in which you have to make
one line.
Tap once on a small line to make it thick.
Tap once again to make a bullet.
Surround every number with exactly that number of thick lines.
Create one long thick line.
Tap once on a small line to make it thick.
Tap once again to make a bullet.
Surround every number with exactly that number of thick lines.
Create one long thick line.
Slitherlink Puzzles / What's New in vUnknown
Now, with the numbers always in the right orientation.