If you pause during the first boss fight, boss sprites will get weird sometimes
I can confirm, only I once experienced this bug in the first version. Just reporting it as extra info for Bengalack if he goes (minor) bughunting 
Another bug I've found is (I think) on 4-3, where you have a chest with wingsmIf you push the crate to the left after the treasure chest position but before making it appear, chest is unreachable, you can't move to its middle, really weird (that's what happen when we try to find all secrets, got from many of the screens, 2-2 is one I've tried quite a few times and yet did not discover all secrets, congrats 
Hoo boy... just think about these situations when it's a cartridge forever...
Find more bugs plz! 
We have a group of MSX enthusiasts in Brazil where we compete in a game every two weeks, I've suggest Lilly's Saga this round, so at least myself and other guy that is really competitive are trying to uncover all secrets to maximize our score and win, I'll report any other issues we find, we will play it until December 15th 
Hoo boy... just think about these situations when it's a cartridge forever...
Find more bugs plz!
Those are small bugs that don't break the game, I wouldn't be bothered if I had a cartridge, it is nearly impossible to test to perfection on commercial releases, even more difficult for homebrew / indie releases, and Lilly's Saga is really quite polished for a homebrew, didn't find any breaking issues so far, just minor glitches
Another bug I've found is (I think) on 4-3, where you have a chest with wingsmIf you push the crate to the left after the treasure chest position but before making it appear, chest is unreachable, you can't move to its middle, really weird (that's what happen when we try to find all secrets, got from many of the screens,
Great to have this feedback!!! Yes, there is a flaw in the design there. Appearing chests and creates don't go well together. I've been blind to this one. Thanks.
2-2 is one I've tried quite a few times and yet did not discover all secrets, congrats
This is cool to hear. I wonder if anyone has found all bonus rooms.
A new milestone reached today: Lilly's Saga now has a publisher
Côté Gamers will publish Lilly’s Saga for the MSX2. Official announcement here: https://lillyssaga.com/?p=286
Woohoo - here we go :)
Congratulation