It needs more different level layouts. The game is great except for that.
The gameplay is great... except the level layouts. 1 for the whole game gets boring. I like changing the color of the blocks, and avoiding enemies at the same time. The concept is great, and I wish I could afford a newer Q*bert game.
The graphics are great. If you compare the graphics to a lot of NES games, Q*bert will be better (at least to my NES games). They made it look 3D (and play 3D) on an old console.
It's worth what I payed and more. If you have a used video game store in your town, that would be a good place to pick it up.