There's no clear cues for when to press B. A bit surprised so much is missing from this build...
Updated 8/2/21: Made the tutorial text at the start make more sense (gonna fix it completely at some point, this is a temporary fix sorry for the confusion)
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Time the cracking of the egg with the music!
Each second beat of every measure is the right time to hit
Press arrows to navigate the menu, enter to select, escape to go back to the menu, and B to crack the egg
Only has the tutorial level for now
To do (for the future):