I like it! But, you need to explain what is going on. Perhaps make a random story line and it'll be heaps awesome. Try to make the game atleast 5+ minutes in length; if you can it'll be even better.
Its heaps good for a first game though! I mean look at my first game... no don't actually, but I mean just update it a tiny bit but making more rounds or powerups or something to make the game more interesting and it'll be heaps successful. Look for things that would make the game better and work out a way to achieve them.
 "Phlegm Thrower")
 "Chat Attack!")
 "Mouse Maze")
 "One Worder")
 "The Endless Zombie Rampage"){kind=icon}
 "Kong Avatar Avoider")
 "Stick Man Shooter")
 "C00KIE CRUSADER")
 "Rocket Legend")
 "Light Orbs")
 "Squavoider")
 "Space Combat 1.0")
 "Zombie House")
 "Simple Brick Game")
 "Platform Racing 2")
 "Pac-Mouse")
 "AssTeroids")