Nice, but pieces should not immediately become immovable when they land on the bottom/on another piece. The user should get one more drop timeslice to move or rotate the piece. That allows you to wedge into places you couldn't otherwise.
Also, you have a harmless call to System.exit() that can be removed.
Yeah, this is my next focus. Should only take a few minutes, but I'm lazy

I'm sure it's my computer but I get this error
(error here)
On the bright side I played your other games, I liked the top down shooter x). Your RS tab is blank for me.
Thanks! I have another game-in-the-making that builds off of this one, but I'm not putting it on the website until it's done. You can try it
here!
for some reason, my antivirus blocks your website...(ESET business btw)
Yeah, I used .co.cc to make it shorter, but it gets blocked a lot. Try
this instead.
-Nathan