Glover has an original and interesting concept, but it begins to get unbearably boring right after the tutorial.
Glover's Main flaw is that after the tutorial, it becomes incredibly dull. The puzzles are challenging, however you must precisely control your ball in order to avoid the many fatal accidents that have been provided. The music is a little below par- somewhat jazzy, but nothing special. Somehow I managed to finish the game, but nothing in the bulk of the game was very memorable. The only action you'll get is avoiding enemies or taking ten minutes figuring out how to destroy one. The boss fights are beyond frustrating, as well.
Glover had an awesome concept, and was appealing to my alternative preferences in games, but soon after the tutorial the game becomes boring and overly difficult with little payoff.