Lumines is somewhat similar to Tetris,but as far as concept goes,it is much more similar to Super Puzzle fighter. In Tetris,different shapes are fit together to make lines,but in Lumines,the goal is to mix and match same color pieces in order to make squares,a concept very similar to that of Super Puzzle Fighter. The more squares linked together creates chains,thus rewarding you with more points. Also,the BGM seems to play a big part in Lumines. I would like to explain it here,but haven't quite figured that one out,myself.
BIG-