Good game
The best thing about this game are easily the graphics. Everything looks pretty CGI and bulgy even though it was made in Flash. The side scrolling doesn't take away any of the good aspects, though. What I did find weird was how I was unable to jump high enough to reach some of the powerups at times. At least I had fun playing it. It would have also been better if there was a way of defeating the enemies.
Of course, the good outweighs the bad and I especially like how fast you move and how high you jump. Zed looks like this giant ant in a blue spacesuit, kind of like Earthworm Jim. I enjoy how everything is presented in a fairly understandable manner. I'm glad you don't have to collect everything to advance to the next level. It's also great that you rematerialize back where you died immediately.