Heh, nice one. Reminds me of the classic Sky Roads.
But there's some stuff to tweak:
1. The arrow buttons were overreactive in the menu.
2. The point of view in-game is very low, there's little overview of what's to come.
3. There's only two sides. I could stay just in the middle and always be safe just as long as one side was wood. I only had to jump over total gaps.
My suggestions:
1. Allow more tiles next to each other (this probably means, make the tiles smaller so more fit in).
2. Put in some additional tile types, like booster, glue, jump-pads that allow you to jump higher, some height difference perhaps. Whatever you can think of.
3. Put in an 'avatar'. A spaceship or frog if you like :P.
4. Some powerups or items could result in some interesting gameplay changes. Coins to add to the score, an activate-at-will speed modifier, a hover-powerup (temporary immunity to gaps), a score modifier... perhaps reward higher score for higher speed?
All in all, nice little game. Perhaps if you pick it up again you can make something real fun of this.
Hammer does the job just fine. What's the time difference between a batch compile and a Hammer compile anyway? Come on, convince me of this... what real, feasible advantages has it? 
