This was a fun little game, and very well done for being made in only 72 hours. A full game of this with a longer route, checkpoints and different locations would be quite enjoyable. My only criticism would be that the sound when picking things up is a little harsh and repetitive, though this isn't too much of a problem, especially considering it was made in 72 hours. Overall, good job! : )
Also, the little slug boy's cry is adorable.