Okay
So, like every other broken record on here, MUSIC! Now that I've gotten that out of the way, It's an interesting game. There are some mechanical problems with the programing though. The fact that you can mine while jumping is a bit...odd and kind of annoying. Also, the buttons are rather touchy. If, for the full version, you could redo it so that instead of jumping repeatedly you just jumped once when you pressed "a" , even if you held it down, that would make the game play a bit cleaner. Also, the beginning. Like that other dude, I accidentally rated this a "0" because I assumed it was broken. I know you don't want an icky loading screen but you could just have a little message that says one moment please or something other than loading...just food for thought. For your instructions problem, if you could, in a simple fashion that wouldn't kill the file size (I'm a fan of keeping it low as well) give a layout of the keyboard at the press of a button or include a controls screen, that would be very helpful. You could also have a menu that you can call up by pressing a button. That way, with a menu like that, the player can browse through all of the instructions, directions and key commands at their leisure or they can skip it and try to intuit the commands out. Right now, you basically are forced to intuit some things and others are lost on those of us who don't actually like reading instructions (95%+ of all people on the internet, from what I've seen). I realize you've probably gone through a lot of these things already but if you haven't, I hope some of those help. It's a game that has potential (sort of a low tech version of a game called Motherload) and could be a fun way to blow idle hours in the future, if only a couple of the bugs are worked out. Anyway, that's my food for thought.