The art style and overall environment are so cute! It’s very relaxing and fun. I see a lot of potential in this game, especially if you add more upgrades or enemies. For example, you could introduce auto-turrets, or when the player has too much energy, instead of only increasing the number of enemies, you could also increase their health.So I just felt a lack of challenge here.
I also noticed that I didn’t really explore the map — maybe adding some kind of random "super food" that gives extra energy would encourage exploration. I mostly stayed in one corner the whole time, haha. Overall, it’s a very nice game, I’d definitely play it again if you update it!