A fun little game. A bit short, and I was confused by the last level looping instead of either announcing the game being complete or going to the level select screen. Could benefit from some challenges, such as beating levels with a certain amount of ammo left. Some of the levels seem to have bizzare effects, such as reverse magnets combined with regular magnets causing the mortar to go flying uncontrollably or boxes seemingly orbiting nothing. Still fun, looking forward to more.