I think you just proved that a game doesn't need great graphics, or even originality. The gameplay is good and therefore the game is good. You are a great game developer.
then i got to level 6 and noticed it was completely random. Structure every level. Otherwise its just frantically moving up and down hoping to get them.
remember, when the zombie apocalypse comes, there will always be a supply of circular saws,anvils and giant balls of steel ready to push over convenient hills and cliffs onto the hordes of zombies trying to eat your brains below.
 "The King's League"){kind=icon}
 "Ben 10 Dragon Blaze"){kind=icon}
 "Villainous"){kind=icon}
 "GoGo Sheep Extreme"){kind=icon}
 "CheckPoint"){kind=icon}
 "Papa's Taco Mia!"){kind=icon}
 "Valthirian Arc"){kind=icon}
 "Cubium"){kind=icon}
 "Dwarven Castle"){kind=icon}
 "The Feeder"){kind=icon}
 "Kill Damn Beavers"){kind=icon}
 "Hammer a nail"){kind=icon}
 "Just Close Your Eyes"){kind=icon}
 "Defense And Eat: I Can Eat Everything!(With Kongregate api)"){kind=icon}
 "I Am An Insane Rogue AI"){kind=icon}
 "The Terrible 2 Player Pong Game"){kind=icon}
 "Balloon in a Wasteland"){kind=icon}
 "Flaming Zombooka 2"){kind=icon}