Unholy Angel 2

Unholy Angel 2 is an adult puzzle game. By completing sets of line puzzles, a picture of a scantily-dressed woman will be unlocked. The puzzles consist of drawing a line from the start space to the end space that passes through every other space. There are special spaces that allow for teleporting to a different space, that only allow travel in a single direction, that can be passed through twice, or that require acquiring a key from a different space first.

There are 10 sets of puzzles, each with 4 puzzles. Each set includes a description of the woman, along with a picture that unlocks after all puzzles are complete. The picture comes in clothed and unclothed variants that can be switched between at will.