The idea to release 3 and 4 at the same time makes complete sense, with 3 being a massive turn-around while 4 goes back to its roots.

I definitely like 4 much better. The story truly made me emotional (no I didn't cry), but it made me care for the story finally.

The secret boss was underwhelming, but it still worked as a boss. The old man was a great character to fight against and quite fun, but then again, I expected much more, however, if my expectations were reality, it probably would've felt forced.

The plot twist at the end with sans and toriel was completely random. Glad to see sans make a comeback finally however.

The "cloopen" sign made me laugh internally.

The Noelle and Susie stuff was quite fun and heartwarming to watch.

Overall, better than chapter 4, great job! Cant wait to see the next entries in Deltarune.