Use arrow keys to move. First catch the fish 10 times to level up, while each level up requires 5 more. I've made 3 levels, so level 2 needs 15, and levelling up to 3 needs 20. Catch the fish, and have fun! Please tell me about any glitches/bugs in the comments. Thanks!
Thanks a lot to @fancy_finn9 for helping me with this project! The idea came from Scratch Cards: https://resources.scratch.mit.edu/www/cards/en/scratch-cards-all.pdf