The Trash Machine// Deltarune [I forgot which part this is]

Susie and Lancer tricks us into building a 'thrash' machine to 'thrash our own butts.' We find out our efforts were wasted when suise/lancer tampers with the machine and it was not how we designed it. Susie and Lancer rick rolls us and we have to battle them to get Susie back on the $&! Squad.