Hi! I liked the idea that the fish bounces back and can hurt you (and also: it is a FISH!). I also like the aesthetics. The red bricks look cool with the green grass, the everything that can hurt you is white (including the fish) and only the player character is yellow, which helps focusing on it. At first I did not know I had to collect food (but maybe it was there and I just missed it), maybe you can have a counter on the user interface to make it more evident. Also, the key use was a bit odd to me. Jumping with space is fine, but then I would have used Alt of maybe Ctrl for the fish throwing.