"This set is wonderful for my 4 year old (and me). The bike detaches, and re attaches very easily. Mr. Freeze looks good, and his "vehicle" is a quick little build that works. I cant say this enough about the shooters in this set.....ITS GREAT! Finally, a shooting mechanism that doesnt just lose the tiny 1x1 piece after one or two times. They dont go as far or as fast, but thats a good thing! My son can shoot and reload without looking for the piece, and then losing interest. Keep it like that designers!!"