Listed as experamental, but still...
No sound, but that probably should have been expected. Motion is slow when moving across the screen. A wider array of motion would have been nice (mario runs, but bowser glides across the screen). I can barely read the text at the end, but the beginning is impossible to read. However, as a positive to the flash, I will say that the reaction to an action is well timed (bowser immediately reacts to mario's attacks, no delay).