mediocre is too big a compliment
Alright, let's get right into it:
Graphics- Terrible, but sufficient for the game, something more aesthetically pleasing would have been a lot better recieved
Sound-Ok, I don't work with flash, so I can't tell you what the exact problem is, but you definitely have some problem with your sound loop. At least I hope you do, but at least you have something
Interactivity- You did the bare minimum required in this kind of game, which is alright, but all it'll get is a five. Powerups, a better scoresystem, etc. would all help greatly in making the game fun
Style- I like the background story, but there's no flare added to this game, it's a bare shell of a game
Humour- Alright, the story could be percieved as somewhat funny, but there's nothing more. Say a page after you die explaining the aftermath of diseased rats controlling the universe would be interesting
Overall: Glitchy, ugly, and the bare minimum, I hope in the future you put more effort into your development, and don't submit anything else as bad as this.