


The presence of Roo is the only thing that makes the fight challenging. He's a horrible fighter, having only a few weak attacks. On higher difficulties, though, there are more of them, so this applies less. The robots in the second game's penultimate stage are easier than the insane elevator sequence beforehand, though they're still pretty challenging.Obviously, this has no bearing on the plot. In the fourth game, you can find arcade machines that actually warps you inside them to fight bosses from the second game, with graphics to match.Luckily, you only fight one of them at a time. In the third game, there's the oddly placed Japanese-styled building that comes after a tunnel level, complete with a boss that looks like a samurai and can split into two other copies.Several sub-areas seem rather out-of-place, specifically the creepy Alien-themed area in the middle of a fairground, complete with entertaining lethal exploding alien eggs and a giant lethal monstrous swingy thingy.The soundtracks are so popular, Koshiro makes money on the side by remixing his own tracks and playing them at clubs. There's a good reason Yuzo Koshiro's name appears on the title screens of all three games directly under Sega's copyright.

The soundtracks of the games are quite enjoyable.
