The good and bad of Flametail is that you may already own it. It was released in simpler form as one third of Maboshi's Arcade, a WiiWare game from a couple of years back. Good thing that was obscure too! But is it worth the expense of a $5 game locked to your DSi? It has a lot of levels presented as both a linear "Space Tour" rush through various planet-themed stages as well as a variety of time-limited side games involving special layouts and power-ups. Flametail has a good mechanic, a nice helping of content and even some fun sound effects. It's good, if you don't mind that it's a riff on Snake you may already own.