Nice idea for a stealth game! This has some puzzle-like vibes, where you have to move guards in such a way to progress / get more coins. I noticed the guards will be attracted towards the character no matter what orientation they are looking, as long as you are close enough, which threw me off at first. But after dying once, I got the hang of it and collected the 40 coins.
The "MONEY" sound effect made me chuckle. Nice work!