Sorry, but Line Rider has been more addictive than I planned (that, and that I just spent $5 on the old school Teenage Mutant Ninja Turtles Arcade Game for XBOX Live). My roommate and I just beat it (in about 15 minutes and the equivalent of $30 in quarters).
Actually, it's baffling to me how people get away with this shit. I mean, that game sold entirely on the fact that, hey, the Turtles were in an arcade game! Wit ha cheesy 8-Bit rendition of the theme song pumping at all times, you don't really care that 90% of the enemies can kill you in 2 hits, with the exception being the bosses (that can kill you in ONE hit).
Worst of all, it's essentially the X-Men arcade game (swap the palates and use your imagination). Really, it's not about how well you hack/slash, but how well you insert coins into the slot.
Shame on you, Konami.