Well....
I suppose the animation and sound were good, but it lacked any real substance. I myself am unfamiliar with Marine Boy so this held no nostalgic (if thats what you were aiming for) value for me, perhaps thats why i don't understand it. But next time maybe you could add an episode to your intro, because thats what this felt like. An intro to an old-style cartoon show. Then it ended, and i was left feeling a desire for more of something that wasn't there. Props for the animation, but work on the overall presentation methinks.
2/5 6/10