Call me slow, but it finally sunk in half way though the game that I was playing as a kidney bean in the land of diabetes where sugar and treats are the enemy. :P I like how your concept of the game and your graphic elements came together and the subtle sense of humor that was presented. The art is simple but very very charming and I thought suits the game very well. The music was very nicely done and catchy. I was quite bummed when it went missing in one of the level. The visual blood effect when enemies are getting their whacking is nice, but I think a sound effect to go with that would improve the audio experience greatly. Also I couldn't figure out how to get the booster to work after beating the red bear, pressing shift didn't seem to do anything. On one of the level, the candy cane charging enemies was able to pass though walls and I wasn't sure if they are suppose to be able to do that.
For a second game, it is very good. You have pretty much all the elements in, all working. There's a few things to tweak and bugs to exterminated. But it was a very enjoyable and playable game. good job!