Charming little game, I'm a little confused on what the potions do haha. Maybe change the character sprite color to something more polar opposite (i.e.: red) to indicate the mode switch has been triggered? It's a bit hard to tell with how it is.
The character animation is very smooth and charming though! The stealth is interesting, even though I barely use it. I like the tease of the goal at the start of the game. Keep it up!