The phrase "little fox" can be used to describe something small or minor that can cause problems or damage in a bigger situation. It suggests that even small issues or actions can have significant consequences. Full definition
We know next to nothing about level design, number of levels, number of bosses, etc., but I'm really glad to know she can wear a cute little fox mask. (gonintendo.com)
I love the realistic little fox ornament # 3 My daughter collects them. (theinspiredroom.net)
With the cutest little fox protagonist, the player must explore, discover and fight their way through the huge world in which the tiny fox finds itself. (feedspot.com)