Music minigame
From Summertime Saga Wiki
Description
On two occasions in Ms. Dewitt's route, you will be prompted to pass the Guitar Hero minigame: first during the karaoke session with Eve, then during Ms. Dewitt's talent show. This music rhythm game requires you to press buttons in a sequence dictated on the screen.
How to play
Press the corresponding key on your keyboard — A, S, D or F according to which line the note appears on — when the music note crosses the blue line. 25 notes are presented and only 5 mistakes are allowed. If you fail, a new attempt is restarted immediately after.
Reward
The main character can progress in Ms. Dewitt's route. The achievement named Smooth McGroove is granted if you succeed in the Guitar Hero minigame on your first try, during the talent show.