Game Development TEST - Explodey McSploderson

A short test I made trying to make a mortar like explosion... got out of hand and now I have a kind of... game? I'm thinking of putting a horde of zombies in there. Also the sweet Diablo 2 esque tileset is from: http://opengameart.org/content/grassland-tileset And the music is by Doctor_Turtle... Who is quite lovely with his music: http://freemusicarchive.org/music/Doctor_Turtle/