If Metroid was populated with cute bunny creatures, you’d have Cave Story. It’s a retro shooter/adventure game with beautiful music, interesting weapons, and a huge world that’s easy to get lost in. Many times, I felt like I was stumbling onto the right path by pure accident. So if you’re a fan of exploring sans the hand-holding, you’ll find a lot to enjoy here, although the order you have to complete objectives in can be a little obtuse. Cave Story is also relentless on the boss battles, but save points are frequent enough to cut down on frustration and keep the game playable in small bursts. Granted, it’s difficult to recommend buying Cave Story on DSiWare when the PC version is free, and the upgraded 3DS version is already out. The game doesn’t even take advantage of the second screen, since your inventory and map only show up when you’re in pause mode. Still, for an even $10, it’s nice having a downloadable, portable copy that retains the NES-like audio/visual qualities of the original. You’ll really feel like you’ve discovered an old Nintendo game with Cave Story.