I massively approve of more penguin themed games! Excellent job!
Gameplay wise, the design needs a bit of work. In the second level, the first jump is way too tight, requiring the absolute peak of the jump before dashing makes it hard to judge. Regarding the powerups mechanic, when you only have one use of each power up for the entire game, you can't design obstacles that cannot be cleared without the power up or you're going to cause soft locks and frustrate the player. Limiting the use to once per level would have been better. I know that was the theme, but I don't think this approach to the theme led to good game design. You should reconsider your approach. Also, the tutorial wasn't super clear on what the power ups actually did. I figured out the ice ball and rocket launcher, but I have no idea what 3 and 4 actually did. I couldn't pass the bone structure in level 3 as a result. I froze it with ice and shot it with rockets, and tried to use the other 2 power ups with no success.
Criticism aside though, be proud of what you made! Getting a game to a complete state within 49 hours is no small task, and I hope the things you learned here can be used on your next game! I can't want to see what you make next