I tried many times (at least 5), but any investment I make is not worth as I always get less energy back no matter if I eat apples or donut, I just always run out of energy. I think the game might be time-dependent.
edit: I was correct. When I switched my monitor to 60Hz (mine is usually 100) it became playable and was finally able to rescue the piggy.
The artstyle is really neat.
My main gripe would be lack of feedback. Even after finishing the game I still don't know when I actually pick up corn and what's the point of the mud patches.
Also, the number checking logic is off by 1 (i.e. 11 corn is needed to buy an apple for 10).