MSX2(V9938) vs MSX2+ (V9958) Space Manbow (スペースマンボウ) comparison

V9938 uses the function of calibrating the screen position and V9958 is a hardware scroll. test with Panasonic FS-A1 (MSX2 - V9938) & Panasonic FS-A1WX (MSX2+ - V9958)