UMAG Copy, however it does have the feature of playing with someone at home, which UMAG doesn't have. However your game isn't going to be very popular unless it has better perks than UMAG (including an online community, which yours lacks) 3/5
A few things to fix: No matter how fast/much you press the space bar, the CPU always wins; the music is from wooden path and really doesn't fit the situation 2/5
LOL: at first I thought I was trying to kill the Earth. Silly me, trying to kill humanity. It's a fun game though, would be cool with some extra perks (achievements, more stuff, etc) 4/5
an OK Game 3/5. Some things to fix are the bouncing, it bounces even when I don't touch it, and how they fall at the almost exact same time, making it ridiculous.