Enjoyed this game! I'm not too good at this though. Found it a bit difficult to go around the ice. But got the hang of it after a while, and felt really good to move, position and time the jump to catch a fish. The slap/clap sound when you get a fish is satisfying. Good job on the core mechanics! The ice definitely felt fragile, so the theme is well covered. The playable main menu was well done. Felt really good to see my name on the leaderboard (I don't expect it to last very long!). The fact that the leaderboard is actually set in the game space that the character moves around in made it more immersive.
Maybe a minor glitch in the leaderboard display (screenshot attached here). Cool that you were able to add a leaderboard in the first place :) (Edit: The glitch wasn't visible when I reloaded the game.)