As everyone said, you need to remove timer. Besides that I really enjoyed while playing it. You always want to play one more round. My highscore is 7 and after a countless tries I can't even pass 1 now :D
Musics and graphics are really cute. Gamedesign is 5/5 on topic. Graphics are really good and little details like potted cactus and USB flash makes the atmoshphere a lot of better. Good job!