Good submission!
The lighting and music create a really nice stealth setting for the game.
The movement feels fine, I didn't end up using sprint anywhere as the rat moved pretty quick at it's base speed.
I think the rat trap trigger area should be a touch smaller, just to give a bit more wiggle room/more real if the rat actually has to touch the cheese on the trap to trigger.
I like how after dying you get a no fuss instant respawn to the last checkpoint, does a lot for the flow.
No way I'm skilled enough with stealth to get the secret ending, good work overall!