This is good so far. I enjoyed the different enemy types and movement felt good in both modes. There was an instance where I was playing the melee aoe mode and the ghost and grey circles pushed me off of the screen towards the bottom. I wasn't really able to replicate this in other attempts, so I'm not sure what happened. Also, I wasn't sure what the enemies dropped after they died, and it would be helpful to indicate that. Overall, I think that this will be pretty good once the player's health is implemented along with the GUI elements.