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A new pixel crossover with the world of Undertale, where you battle Gaster. This creature knows how to rap and invites Boyfriend to join him for a battle to determine the best rapper to the song “Gaster”. Follow the arrows and sing all the way to the end so that Boyfriend can be the winner and show his superiority.
Perform this song to the last chord. The arrows at the top right and left of the screen serve as the moment to press the keys. Wait for the colored symbols to reach the stencils, and as soon as they touch, click on the appropriate keys. A few mistakes in a row will severely ruin the song, and Boyfriend will lose instantly, after which you’ll have to start the performance from the beginning, and try again.