Tough game! Especially in hectic situations it's very easy to mess up given the "only one button" control scheme. While I understand that it matches the theme, I think it would have been better to focus on the "only one item" part and ease controls by using two separate buttons. Balancing-wise I like how stones and keys impact enemies in different ways when throw and how that values keys in two different ways. Particularly with the stones I often was unsure however, if I really picked them up or not. Which, again, becomes problematic in hectic, high stakes situations with enemies being in the room. Maybe display the currently hold item in the corner of the screen. Of course a pickup sound could also fix this issue. Really like the art style btw, are these original content? :)