Hey there! Thank you for your input.
We are going to add an option for the map movement to be inverted, to help with that.
We will try to replicate the attack error.
For the water to go inside instantly, we will try to work on a polish for that. It works better on a Gamepad and it's a tad more smooth.
That bug of the water will be looked more into! Thank you for the information.
The invincible enemies, were you trying to attack with a specific dragon? There is an elemental combat system and some of the dragons can't damage certain enemies in combat. Could that be related to your question? Some enemies will receive zero damage from a character that has a weaker element to it.
The rock is not the end. You have to burn the string in order to open the next area. We need to teach this a bit better to players in the game.
And for the abacus, it is not listed anywhere yet, but it will be added to the inventory Menu. For now it's only functioning to increase your maximum currency, but we haven't implemented the inventory to show it yet. It will be done soon.