Thank you so much for playing and for such a detailed, kind comment! 😄 I'm really happy the failure screens helped. I wanted failing to feel like a hint, not a punishment.
Your suggestions were spot on, so I've just released an update with both of them! The switches and rotating pipes now glow in the first levels until you tap one, and the pressure bar has a clear white line showing the minimum pressure. I also softened the sound effects.
Thanks again for helping me make my first game better. Hope you enjoy the next 99 levels! 💩🚽