Overall: I gave this game a 9.5 because of the all around good things too offer from this platform. Nicely drawn characters, detailed graphics and interesting bosses. This game got all around good views from me. It is a fun game and to me has good replay value.

Graphics: 8, the graphics are okay for an older game, the colors and the characters are nice because they change with different levels. The back ground has nice detail. The ending has nice graphics and all types of enemies or different colors.

Sound: Metroid gets a 9 for the sound, a high score, I think the music set the mood for the game. The sounds fx are good , you  know when you get to a different level and you can tell by shooting something if your doing damage or not. 

Addictiveness: Another high score! With the items you have to find or the battles you must fight to beat the game it has a fun replay value. Plus it's a jump around shooting platform game blasting aliens.

Story: Story gets an eight, original characters and bosses is what makes this game great. I would have gave it a stronger rating, it has a typical good guy or er... anyways bad aliens theme.

Depth: The depth of this game gets a 9. Takes a while for the begginer to figure out it can be a maze some times and what item to get to proceed in the game. Plus with the multiple endings you might want to play more than once!

Difficulty: This game is pretty difficult for beginners. Having to build your energy and figure out enemy patterns can get difficult. The end can get frustrating but it is beatable if you are prepared.