Cool, no one ever asked for this! Seriously, you're the first ever that seems to care about true Castlevania. :)
I did the clock, check preview video below (sound on). Need further testing but just the "tick" SFX that must be included in all the music tracks and that's the tricky part. It's actually a part of each "music" (so we don't pause or lag the game to load a WAV file) and that requires musician knowledge. Where I'm a bit bottle-necked at the moment, to cut a long story short.
The clear screen cross is easier. But I'm doing an original game now (so I can receive donations here, maybe even got a deal for boxed/physical), and coupled with the fact that they were never requested, so I left the 2 things out: like "meh, no one cared". :)
Until now. ;) So, I'll probably do the clock/cross update at some point, and thank you very much for your words and have a great 2026 too.