Fun idea and great first game! It was fun to see how the level changed when I got smaller and to have to change up my strategy to get through the level. I did find it unclear that the fruits made you restart the level and that left me confused for a good bit, but once I figures it out, things were fine. I also found the controls really difficult to use, especially when very large as I kept running into the fruits almost unavoidably. Maybe decreasing your horizontal move speed could help.
Overall, a great start! Keep working at it, get people to test it, and polish! Good luck!