Fun, simple game, although if you hit the side of a platform while it's moving toward you, sometimes you can get get stuck in it and have to restart. You have time to fix it, though!
I had quite a bit of fun playing this game, though I have to say that having the player character wrap around the screen instantly but not the holes kind of messed with my head a lot.
@sparkleswirl: Yeah, I know, I was thinking about that, too. But you totally need the time you get through this, because especially the very fast floors are a pain in the ass, if they are too short. ;)
A surprising little challenge for such a simple concept. Moments of satisfaction from chaining a few jumps together to moments of self-loathing when a botched jump lands you two floors down. Lovely stuff.
For a harder difficulty (if you wish to further polish) you could add a mode where the sides of the tower kill the player, requiring them to jump the floor gaps too.
GarethIW: Thank you. Yeah, I totally will polish and release an advanced version later. During the weekend I had some ideas for other game modes. I like your idea and might include it. :)
I Think you could use some minimal HUD to let us know how far we already are in the game!