Very fun and addictive! Though the gameplay feels a bit weird. The fact that you can still see the character when it is below a platform make you think that you landed on it, so it's a bit confusing. Also, I often get hit by spikes even though I jumped. To complete the game, I had to keep moving so that the spike activating below me didn't kill me when I was in the air. I'm not sure if the online leaderboard works. I tried to submit my time but nothing happened.