The idea for this game is really cool. You throw things to build a road to climb.
There are a few things that make the game tedious than fun:
1. You need to click a lot in order to build a suffice bridge of path, which make it when you fails, it is extremely punishing
2. Lack of visual cue - there aren't much cues to intuitively know what is happening or what the player should do (I click the flag twice because i thought it do something)
Overall, an interesting idea with great potential. 5.5/10