Would it be possible to include Caetla 0.37 instead of 0.38 on the 256K Unirom+Caetla version? It works with cheats loaded from a memory card. I think that 0.38 is incomplete (noting lack of plugin in the extended menu) and crashing when trying to select.

You can use it in English. Go to the bottom menu item, and press O. Then go to the second menu item from the bottom (this is the configuration menu), press right arrow (or left arrow), then O. You should be using English instead of Japanese. Regardless, there is no Cheats item on the main menu, and ...

Nice, are there any links that show how to use cheats on Caetla 0.38? I don't even see Cheats as a menu item like on 0.34. Supposedly a memory card file is needed?