Well done on getting this done for the 48h Category!
Simple, and easy to understand loop which you executed very well. A small frustration near the end was being blocked by small fish as I tried to get at the larger edibles up top. A way to possibly fix this would be to have each of the newly spawned tentacles be able to grab a separate object, allowing you to to grab a lot of things at once to eat. This could allow for a more satisfying sense of progression.
Other than that, the game runs and play well. I had fun playing!