A Lovely game! reminds me of Tetris'd, but with less complicated controls and more controls over the blocks themselves. The lava is a nice hazard to look out for and easy to spot. The one complaint I have is the dinosaur itself. Don't get me wrong, it's well designed, it's just that the dark green doesn't have the best contrast against the background, making it a little hard to see in the tetris area or the info area. it's easier to see in the info area, but being able to see your character as you move it is pretty important. It's not like the dinosaur is completely invisible, it's just a little hard to see. A more lime green or lighter color in general could help, or perhaps just a white pixel outline If you ever go back to change things.
But this is a fun game and I'll probably play again to get a higher score.