I just scrolled back through a few pages of threads, and saw a few threads from people who were unable to win the "I Hate Snakes!" medal.
I just played a marathon session and got stopped out at level 31 with 8 snakes killed and no more dynamite. I tried to die on purpose and carry my snake count into a new game, but it doesn't work that way. :)
I'm going to give it another shot and see if I can win it. Now that I've won the "Powerups? No Thanks!" medal, I can put all my focus into the snakes medal.
In the past I've been offered a choice of dynamite or hearts at the start of each level when starting a new game, so I'm assuming this medal will be easiest to win if I can start like that.
I was just curious if anybody had won this medal.
One user claimed to have killed 10+ snakes but had not won the medal, but that was some time back in an old thread. Some medals, like the "100K Club" didn't always unlock in older versions, but this was later fixed, and a progress bar added for that medal. There is also a progress bar for the snakes, which may have been added at the same time. I found an older thread where another user had requested a feature like that.
I won the "100K Club" some time back after the progress bar was added, and "I Hate Snakes!" is now the only medal that I don't have.