This hack was incredible! My one criticism towards it that the difficulty scaling jumps wildly towards the end of the hack in the Card Castle. The Head Hathy's Kiss of Death is brutal to deal with having no ways to cure poison besides trying to make it to a save point, and I found the rematch with K. Round to be the most difficult fight in the game. Susie says she gets an idea and suggests Throwing, and I thought the fight was just scripted survival until throwing enough would remove the crown. I didn't know that K. Round is susceptible to the Ralsei's lullaby and that you still have to fight it "normally" until I looked up an old version of the fight on youtube. I think that could have been communicated better to the player. Afterward I expected Jevil and Chaos King to be absolutely brutal but they ended up being pushovers.
Besides that nitpick about difficulty, I absolutely adored this hack and how faithful it was to both Earthbound and Deltarune as well as the various additional easter eggs thrown in such as the description for the spin cake and the easter eggs at the Librarby and the lake. I even started tearing up a bit at the personal "thank you" at the end of the game. Thank you so much for all your hard work to make this incredible tribute!