The idea of having to refill your bullets is cool but I think it could've been implemented better. There definitely should be some way to gauge how much water you have left. Secondly, there should be something that stops a player from just using one faucet repeatedly, maybe something were the faucet can only fill the watering can up once before taking a while to refill. The dash mechanic feels a bit useless, I think it could be improved by giving the player invincibility while doing it, in exchange for using up their stored water. Additionally, when in the dash, the player has no collision and can go through walls. Lastly, a bit of enemy variety could help.