An interesting twist on Match 3 play. Addictive. Along the way, complete a gate and face a FROG (Fragmented Object search) and task puzzle. Those are fine, visually interesting enough, but hardly the meat of this game. It's all about the game boards.
Timed in regards to earning medals, but otherwise the boards are more exercises in thinking than clicking. There is definitely a "best way" to play each board. Take as much time as you need to perfect your strategy. You will earn power ups as you progress through the 7 Gates.
There are 84 levels. After you have completed a board once, you can repeat it at any time. I was compelled to play through them all until I turned every level gold. I think you will be too!