I attempted to play this game once and level 1 worked fine. However, I was unable to make it past level 2 when I had a power outage and the computer closed all windows. Now, I attempted to play it once again and levels 1 and 4 don't work. I have not attempted to play past level 5. I like the idea of the game; I just wish I could play it.

Although the concept was ridiculously hilarious, at times, especially when the head split into two parts, the ability to move was exceptionally hindered. This is to the point where the player almost feels claustrophobic from the limited amount of space. The lower jaw should not have the capability to both infiltrate into the left side of the screen AND shoot mines or else the player will feel overwhelmed. Also, when the head splits into two, there is a separate part of the head that's left floating on the right side of the screen, this part distracts the eye despite the fact that it can neither hit you or be hit by you. Also, based on the number of projectiles, type of projectiles, and speed Nyan Cat moves at, the hitbox in the game is uncomfortably large. However, the music is both fitting, addictive, and pleasing to the ear, and the graphics are okay.

Although certain parts of the game were cute and wonderful, much of the game was lacking. The fact that you need to be directly touching an object to interact with it feels unnatural. Also, if you click on an object from too far away or hold down the mouse button over a too-far-away object, the character stops moving which also seems very unnatural.
The music is set on a loop and, given the situation, doesn't really fit with the tone of the game. The game takes place in a forest, so a classical music piece highlighting the xylophone would probably work best.
The clay characters are very cute and well done. The overall scenery is also cute and well done, but the trail animation when the character is walking doesn't really match the scenery. The trail animation that you used is commonly used for puddles or other shallow water sources. The bunny in the game is walking in, what I assume is, grass. In this case, the best thing to do would probably be no trail animation.
Gameplay seems almost too easy and unoriginal. Stars aren't really "hidden", so they're easy to find. Many search-and-rescue games already exist. Granted, most of them don't have the character choose only a few individuals to bring back to the base/basket, but that's because there's a lack of motive to only bring back a handful of individuals.