Gunpoint

Leave no living witnesses to your presence on a mission that has guards.

Wire an elevator button to trigger something when the elevator arrives.

Use the Crosslink to create an infinite loop that burns itself out.

Use the Dropshot to land silently from a great height.

Get knocked down by an opening door.

Knock a guard out by opening a door into him.

Use no violence at all on a mission that has guards.

Upgrade your Bullfrog Hypertrousers to pounce instantly.

Upgrade your Bullfrog Hypertrousers to maximum jump strength.

Use the Gatecrashers to kick a door off its hinges.

Use the Gatecrashers to kick a door into a guard.

Complete the game.

Help justify my early, not entirely wise choice of game name by holding someone at gunpoint with the Resolver.

Use the Hushcracker to jump through a window silently (outside of the test lab).

Publish your personalised epilogue.

Use the Gatecrashers to kick a door through a window.

Complete a mission that has guards with no violence, witnesses or loud noises.

Complete the police chief's missions without incriminating yourself.

Catch a guilty man at the expense of freeing an innocent one.

Jump into an Enforcer to knock him through a window.

Free an innocent man at the expense of catching a guilty one.

Notice the story doesn't necessarily gel with the mechanics. Become qualified games journalist.

Use the Longshot to make a guard unintentionally shoot another (outside of the test lab).

Complete a mission faster than I can.

Use the Prankspasm to knock out someone who isn't standing near a power socket (outside of the test lab).

Upgrade your battery capacity to the non-figurative max.

Create a custom mission with at least one objective.

Mock the chief of police at a critical moment.