Very amusing little game!  I like the idea that when you are amongst a group of others you actually just look like one of them.... hahaha!

This is a neat take on the theme! I love how you basically just become the object you're trying to blend in with, and the fact that all of the levels are different scenarios.

That being said, with over 3 hours, I feel like the visual and audio departments were a little lacking. I'm not sure how much time you actually took to make the game, so I don't even know if this criticism is valid, but a single music loop would have worked.

You're very brave to make the game in JavaScript instead of a normal game engine. I applaud you!

The concept is great. Extra polish in execution would make it even better. Nice job!

In the second level it felt a little unforgiving since you had to stay so close to the group, so I ended up evading the angler fish by swimming in a circle.

The third level felt just right though, and I was able to evade the hunter by blending in nearly the whole time. And I noticed that the hunter is faster than you, which makes the “running in circles” strategy much harder, but I found it was still possible if you run diagonally. Wasn’t sure if that was intentional or not.

But this was a really solid mechanic and a good take on the theme!