based, I liked undertale and quite enjoyed deltarune.
the way that deltarune was set up was very peculiar to me, like the characters in the world were created by someone in the Undertale universe with a limited perception of who they really were. Undyne and Alphys are both what they publicly appear to be (a law enforcer and a big ol' nerd, respectfully) but both of them are very self-serious, like how you would expect them to act when they were on the job. You didn't get Undyne's weird tendencies or all of Alphys' dumb anime garbage and tendency to ship stuff. Same with Toriel and Asgore, you know they are apart but there is a lack of nuance as to why their relationship fell apart, or the dynamic they still have with each other interpersonally. I somewhat wonder if the Deltarune world is like, a simulation of the Undertale world for some kind of test.
on a more technical note though, the spritework of DT has done a lot better than UT. I hope we get more neat animation in the final release of DT though, I feel like Kris is a lot more of a separate character than Frisk was ever meant to be, and so they should have a lot more flair to their actions and movement to establish that.