I liked the snake. I wished there was a way to tell the good and bad apples apart or maybe there could be multiple apples spawn for a set amount of time, letting you choose which ones to go after. But, with only one spawning at a time and health bar draining, I felt like I didn't have a choice but to go for the apple. Another thought is the snake could hear buzzing flies around bad apples, and either show flies swarming or play the sound when you get near the apple? I also had apples spawn on the edge of the screen and stop spawning after a while. It's a good start, keep at it!