The ammo is candy, but there's a whole lot of shooting.
Common Sense Media
17 April 2011
Summary: Parents need to know that Hop: The Movie Game features a great deal of cartoon violence -- much more than is found in movie upon which it's based. The weapons may be fantastical and shoot candy ammunition, but they still resemble weapons and are still called "guns" and "grenades." And they destroy your enemies. The mini-games that occur between shooting levels are non-violent for the most part.
Summary: Hop: The Movie Game is an action adventure puzzle game that tells the story of E.B., the teenage son of the Easter Bunny, as as you help him save Easter from a fluffy coup d'état led by Carlos and his fellow chick workers!