Great art! but I have to join the rest, the gameplay was pretty confusing and to be honest I'm not a fan of those "press this key fast or you die!" kind of game, they make me nervous and it doesn't let me enjoy them, but it's ok, some people like those fast reaction challenges. I'm not sure if I fully understood the game, because the timer runs out but you can also make it run out by blowing the whistle. Maybe if instead of pressing random keys, the challenge is that you can freeze with a click of your mouse.
Still, you tried something new and this is what game jams are about, to experiment new ideas, to see what works, what people like, and so on... I'd keep the art and make some sort of chill game, those penguins are ideal for some sort of clicker/incremental where you can catch fish or something, or a cute top down strategy of some sort, as we all said, the art is great, keep it up!