Not really the best...
Graphics - 10/10
With some realistic cartoon graphics, I would like to say that this game would be one of the best. The graphics of the grass and the land would be okay. Also, nice effects when you end up at the elevator, where the elevator will flash and you quit the level. I would also say that the map is also realistic.
Sounds - 9/10
I would like the music, especially the one by Denvish. But I think you need to improve the game by adding sounds into your game. Example, if you attach the hook of the swing to the land, it will create a sound.
Gameplay - 9/10
The thing I've heard around these games is that this was the first game in my opinion to have swinging through platforms. Yes, I know this is a side-scrolling platform game, where when you go further, the map scrolls to your character, which is a bunny. But, I guess there were cons. You cannot use the up and down. I would say up (W) for jumping, and down (S) for ducking. Also, I guess that some of the achievements are hard, but I haven't got them yet.
Replay - 9/10
Geez, this was so hard, but it's superb. I got ended up at level 8. I would suggest that all sites where this game was hosted should have a save feature, so I wouldn't replay the game from Level 1.
Overall - 9/10
This game needs a little bit more improvement. As for the improvements, check my above review.