Addictive, but buggy
The concept itself reminds me of The Classroom games, and I like having to use stealth to accomplish an objective. Your game is challenging and fun, but I felt that several issues made it frustrating. First, there seems to be a few bugs in different areas; namely, the trees in the lower part of the screen at the soccer field in which you disappear, and a gap in the trees in the area to the left of the first security camera which is impassable. I really don't like starting over from the very beginning after every failed attempt, and I think adding checkpoints would help. Overall, not bad for your first game.