Thanks for testing.
The red translucent square is a POC for the red clouds in the Haunted Forest area in SoM https://youtu.be/NMklmFM5IWU?si=J43QEKtzSn9Z13r-&t=3762 (lol). Does it flicker a lot in your hardware or does it look properly translucent?
Still figuring out if should convert into a Super CD-ROM² game or an Arcade Card game? Do you have access to hardware that can play PCE-CDs? Can you play Arcade Card games?