Oh... that's a nostalgic game, remember playing a game like that (probably without enemies chasing you and shooting at you :D ) when I was a kid.
Great idea, very nice execution, it is too hard for me, would be nice to give the top of the hill less trees so the player have some time to get the feeling of the game. Also it wasn't very clear for me, with an exception of the trees, what I should avoid and what not, doesn't take long to learn that though :)
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