So maybe end rooms could be strawberry rooms, but strawberries are replaced with crystal hearts, kinda like cassette tapes do. (example: if you do 7a 7b and 7c only randomizer run, it most likely will give you the 7a cassette room as the end room, with the cassette tape replaced with the heart. Now lets say that it is a strawberry room at the end. The strawberry would get turned into the crystal heart!)
So maybe end rooms could be strawberry rooms, but strawberries are replaced with crystal hearts, kinda like cassette tapes do. (example: if you do 7a 7b and 7c only randomizer run, it most likely will give you the 7a cassette room as the end room, with the cassette tape replaced with the heart. Now lets say that it is a strawberry room at the end. The strawberry would get turned into the crystal heart!)