Cute Small Game! I love the cute totorial drawed by hand and how you add new mechanics for every new level, although still too simple given how common this genre is. Maybe need to consider add some new mechanics. I also enjoyed the subtle changes in the background music when Gura transforms into the red shark, and the dynamic interaction of larger fish eating smaller ones adds a nice layer of realism. There are some improvement I noticed. The fish sometimes shake and flip left and right at the edges of the screen. I understand you might want to prevent them from swimming off-screen, but this could be handled in a better way. For example, you could create a slightly larger play area beyond the visible camera screen, allowing fish to temporarily move out of view and then coming back, while still preventing them swimming out of the screen.