A game that is definitely not base on the Thundersnail part of Undertale. Nope. Use Z to cheer on your slug and make it go faster, but don't do it too much, or it'll feel too pressured.
The characters of Frask and Napsterblok were not inspired by the characters Frisk and Napstablook, which were created by Toby Fox. The music is also fully original, and isn't the Thundersnail Track from Undertale backwards.