for a first game it is not bad, add something so the right mouse button cannot be pressed and the tab button cannot be used(no cheating), add levels, ad better grapics,
make the lines wider so i cannot move through them. maybe some sounds or music would be nice (a mute button included)
also never use "first game" as an excuse, let the people give critisism.
they may say its crap, and you may agree. but some people will give good advice (especially after your games have gotten a little better).
don't use excuses like this because it takes away from peoples real opinion! and if you really want to make some good games you need their opinions.
the basic concept of this game is the same as that of boomshine. all the differences you list are minor and do not qualify this game as original. if you have thought of this game seperate of boomshine then its to bad for you :(. but either way, it has been done be4 (im not saying this game is bad because it is clearly now).
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