Bloodtrail concept

So, after creating the blood trail concept, myself and andrew ran into a conundrum, if the player ever decides to translate up or down, the blood trail would technically follow, unless theres a way to generate the trail behind the mower.
The only way I could think of having the trail follow, is to have the trail broken up in to 40+ sprites, so that when the mower moves, the trail will be broken up.

and yes, its a concept, because I dont want to texture/color a idea that wont come to fruition.