My bits being Bunger clips are simply because Bunger brings me so much joy. The first time I played Bugsnax and Bunger just appeared made me so happy. Love that lil' guy.

For my raid alert, I just liked Hypnospace Outlaw, and Pizza Dance is so funny! It makes for a fun raid alert.
My sub notifications are just random bits and pieces I like, nothing consistent really. The Deltarune notifications were simply because they were simple and fun, and I had Lancerspin before Chapter 3 happened! I think they are random gifs I had and didn't really think about it at all all.
I made my follow sound the OMORI sound for healing at a picnic basket. I love that sound a lot.

The only other alert I have that I can say had a bit more thought on it was my $100+ alert being Gold Rush from IIDX Gold. MAKE IT MAKE MONEY, you know?