Honestly I'm not even really sure what's going on in this game, I've tried three runs now and like, I've only gotten the arrow to appear once. I tried following the audio, but I think whenever the arrow isn't working, you can't actually find the potion minigame, it doesn't work.
I assume all this is a bug? Dunno, wont rate the game yet, I'll try it again some other time.
(Offline version, btw.)
Also, two annoyances:
1. The intro text is super slow, but clicking skips to the next dialogue instead of skipping to the end of the current one, which is really just useless.
2. Fullscreen doesn't seem to work on the online copy of the game, and the game's scaling is pretty clunky so it's hard to see.