A very fun and creative game! It's the kind of thing where it's fun to try a level again and again for the sake of getting all the smileys. The cannon smileys can be a little tough to use when you're not sure where the smiley you're aiming for is going but it's not a huge problem. However, the boss battles, while unique and relatively easy, could use, as said in the comments, a hit indicator, as well as a few seconds before a boss starts firing rounds, rather than throwing the player a boss fight without warning. Nonetheless, I'm looking forward to playing more of this game.
Though it is pretty to look at, that might be all that this game has going for it. It seems quite bland and unforgettable, for it acts like what you might expect from a lazy dress-up game. As such it needs something more exciting, like music even (which begs the question as to why this dead-silent game has a 'music' tag). This game, unfortunately, seems to have no life or personality to it and I can only hope that games following this one shall improve.
 "Smiley Showdown 2"){kind=icon}
 "Enchanted Summer Fairy"){kind=icon}