Its ok i guess but you dont know what to use, and what buttons you need to press, crappy character. bad game play.

Cool character but it's pretty shit bro.

As a student flash game, it isn't bad. It has potential. However, when grading for overall content on this site, it's severely lacking.
Gameplay- You go from impossible to do as a Level 1 blob to indestructible force when you get the gun as a Level 2 blob. It's super repetitive and super easy to master.
Music- There isn't any. Might want to add something down the line.
-One major flaw in this is 'I don't know what to do'. You go through a run-through, eat some sushi, get hit by an unavoidable enemy, and get sent back to the main menu. Natural gamer instinct is to try again... and wonder why you can't gain a level. One thing that might help is to redirect to the Feed page after death. That would give the player more of an idea of what they are supposed to do. From there, add a Play option from that page, rather than going back to the main menu.
-The ending also didn't make sense. I played for a while on Level 2 before I got bored (easy to do when you get the gun) before basically committing suicide to see what else there was to get. I then fly off the screen, hit a cloud, and won. This.... makes no sense. Where did this treehouse come from? Is that an old lady in the bed or a sick blob with a hot water bottle? What is going on?

Basically, you've got ideas down, but they're not well implemented here. Keep trying and refine your flash skills.

Really nice game you need to polish your skills and you will be a better game Dev