Cool idea! The movement cost seems to be wildly inconsistent though. Sometimes I can move across the whole level without using any energy, and sometimes just moving half a square uses up all my energy. If it could be more clear when and why energy is being used up, that would be really helpful. You need to be giving a bit more feedback to the player about their actions so they can understand where they went wrong and improve.

- Joe
(if you have time to check out our game, that'd be awesome)

Nice idea u have there!