Ok first off, this game looks really good. The art is beautiful and all the idle animations are really smooth. As others mentioned, having to use the same fingers I use to move to also shoot was challenging and took away from the experience. I think the biggest thing the game could use is a little more explanation of how it all works. I don't really understand the number over my head, like I know it's my health but it seemed to go down randomly and at random rates. It also took me several deaths before I realized that you can only hop to a new host when their health is lower than yours. Certainly a cool mechanic, but it wasn't something I guessed until hopping a few times and wondering "wait why did it decide to work NOW?" I also would sometimes have the game zoom in too far while I was playing and it was hard to see enemies.
Nevertheless, you put together a pretty little game, and I think with just a bit more information for the player it would clean up a lot of the frustration I had at the start. Once I figured out was going on I enjoyed it more. Great job!