Its enjoyable! i love it! But the first boss takes WAAAAAAAAAAAAAAAAY to many hits. I swear I hit it like 35 times and it still didn't die.
Edit: Sorry, I was actually wrong on the boss, I just died a bunch of times and thats why it took forever.
But having to get an A rank to get to the boss level was kinda bleh. Maybe you could require the player to have a certain amount of the gold acorns instead? You dont have to listen to me if you dont want to of course, just tryin to give feedback I think could maybe help ya. Good luck with the full game!