omg I love the sound. You put a (squezzy) sound on bit eveything and it makes the game very enjoyable.
Even if there is a "manual" before starting the game; i think you can introduce elements more slowly. For example: why can't I eat the plane while later on, with the first evolution, it seems I can? Can I eat the police? (Yes, but it feel awkward to me to try to do it). The universe and the idea is fun (we can play a monster!!). Your idea needs to shine even more so more people can enjoy it! congrats!