Nice work! I did a quick recording of my play in case it's helpful: Crusty Rush by Magic43, Alex | Cap Recording
I had fun dodging the seagulls and rocks, I should have been spamming my food more often as I was just using it to move at the start, but really should have also used it during 'down time'. I also really like the art style and music, very quick to feel immersed as the crab.
I would be interested to see what the result of playing around with the speeds of the crab/rocks and seagulls - maybe slightly slower seagulls and faster movement on the crab/rocks. Also perfect to have some scaling difficulty where you would move slightly faster over time.
I also think a nice little addition would have been a game over screen with your score, and an option to play again. I actually didn't realise the first time I had died fully and started a new game 😆
Great game jam entry - well done!