I like it. It reminds me of Enough Plumbers, though a bit more restrictive with movement.
edit: it seems that my deaths after finishing were kept when I pressed play again? This is solved by a refresh, but I still think it may be a bug.
edit2: I finished with no deaths, but my score didn't submit to the leaderboard. it looks like it hasn't submitted for any one else. this seems bugged too.
Also, upon reflection, it more reminds me of the game "Fly Guy" from earlier this year. If you haven't played it before, you might be interested.