Nice little game! Reminded me of Donut County, good job.
If you wish to improve it, here are some very simple tricks to make it 10 times better:
- Add a random value (in a range) to the spinning speed of the objects around the tornado, this alone will make the animation look way better and polished.
- The camera should dezoom way more as the tornado grows, as its currently too close to the tornado, which create a weird effect as it grows, in fact it should be very clear when the tornado "gain a level", maybe by suddenly dezooming the camera.
- Adding a tornado SFX could be a plus, but if you add one, make it get louder as the tornado grow to better sell the effect! Or perhaps having different levels of tornado SFX would be cleaner.