Thank you for playing; your feedback is highly valuable.
Regarding the display issues, it's indeed a problem in the PC version that has already been fixed but not yet pushed.
Yes, the real challenge is to complete each level with all possible solutions, which poses a true difficulty.
Lastly, we plan to create levels with mixed pieces, but our priority is to finish all the zodiacs first (5/12).
I would love to create a level editor for players to create and share their levels too.
Unfortunately, it's challenging to find time to work on it full-time since we are neither paid nor have a marketing budget. Therefore, these ideas must wait for now.