Gunpoint

Gunpoint is a stealth puzzle game that lets you rewire its levels to trick people.

You're a freelance spy, infiltrating high security buildings with subterfuge, gratuitous face-punching, and an unusual type of electronic sabotage. You can cross-link things like light switches and doors so that the guards unwittingly take out their own security systems, their colleagues, and even themselves. It's pretty funny.

Source: The Game Website.