Decent. I like it.
So that's where those pricks who make those horrible mobile games steal their ideas. But THIqS is the fun version! It got potential, that's all I can say.
Oh, also the last checkpoint doesn't work.
(PS: The first sentence doesn't mean to insult you, it's supposed to insult Voodoo etc.)
Love it! It reminds of a lot of spy games I would play growing up.
Took me some time to figure out I was leaving footprints! Okay, now I know it's odor! Which is... different.
Guards were directed fully at my characters position instead of my escape route, which left them stuck behind walls with their backs totally open.
And I was stuck after a dog cornered me in a corridor and I couldn't either disable, get past him, and neither he wouldn't kill me. Ok, somehow the dog opened the "door with a dot on it" and I (sorry myself) killed him, but now the door won't open... hahahaha
The dog also says "What?!".
Since it's a game with no alarms, odor is present with no ingame reasoning and apparently the noise I make isn't a trigger, maybe you could create some kind of story to bring all this together;
Guards (at least the ones with the keys) should be able to unlock doors to investigate noise from locked rooms (and them lock them again on leaving, or not);
Change cancel key on keyboard, esc is already in use on fullscreen;
Maybe a different symbol to communicate leaving odors.