Anyone who appreciates what makes a truly great game should be able to recognize Ikaruga for its elegant design, aesthetic beauty, and sheer challenge.
You'll need to consider a few other factors. Crashing into anything has lethal results, regardless of your ship's color. And, at the default difficulty setting, destroying a same-colored enemy causes that enemy to send a burst of same-colored energy hurtling toward you from out of the explosion. Again, usually that's a good thing, as it helps you charge your homing lasers. Though the idea of inflicting double damage using the opposite color may sound nice, the prospect of keeping those homing lasers constantly ready for action is a viable alternative. But it's not that simple: Since you'll have to change colors frequently, you'll need to be very careful about what you're shooting at as you're switching colors. It's very easy to die in Ikaruga by switching colors and getting hit by an energy bolt when you would have absorbed it a split-second earlier.
So, then, Ikaruga achieves the impossible: It's an accessible, over-the-top, very intense, highly challenging, utterly action-packed space shooter, but one that demands the utmost care and restraint on behalf of the player. As if to further encourage you to choose your shots carefully rather than just blindly keep firing, the game features a chain combo system that rewards you with exponential point bonuses when you manage to destroy same-colored enemies in groups of three at a time. Racking up massive chain is extremely hard (and by no means required) amid the chaos of the game, but it's perfectly possible and helps you earn yourself some much-needed extra lives, as well as bragging rights--using a password system, you'll be able to see how you stack up against other Ikaruga players from around the world. Ultimately, this is one of those rare games where you'll care about your score. After barely managing to shoot your way through a given level, only to be awarded with a C grade for your lackluster efforts, you'll feel compelled to try again and do better the next time.
And you'll be trying again a lot. Though the pattern of your enemies is identical each time you play, and the five levels are all relatively short, that's not really detrimental to the game. Realistically, you'll need to memorize what happens and when in all five levels to survive them. It's easier to do this in the conquest mode, which lets you play through any subsection of any level you've managed to beat without continuing. You can even watch an expert Ikaruga player go through each subsection with surgical precision. And for your part, only with a precise moment-by-moment knowledge of what's to come will you manage to come out on top. If the idea of meticulously memorizing each level's layout and the pattern of each wave of enemies seems unappealing to you, remember that virtually all action games rely heavily on pattern recognition--Ikaruga is just more honest about it. The game isn't padded with the sort of stuff you'd never want to play through more than once, and since it's fundamentally a skill-based game, you'll probably appreciate replaying the same sequences just to witness yourself getting better and better and blasting through them. For good measure, some art galleries and an alternate mode can be unlocked after repeated play.
You won't finish Ikaruga for a while--certainly not in your first few sittings. Though you can set the game to give you from one to five lives, initially you're limited to three chances to continue. If you save your progress, you'll notice that with each passing hour of gameplay, you'll be granted an additional continue, something that will eventually ensure your ability to get all the way through the game. Again, though, you'll appreciate being able to do this to the best of your ability, sustaining minimal losses while racking up seriously high scores. The three difficulty settings also provide considerable replay value (even the "easy" mode is hard), and the two-player mode also bears special attention.
The dynamic of playing Ikaruga with someone else is quite different from that of playing the game by yourself. You'll realize that new strategic possibilities and some new challenges open up in the two-player mode, as one player will be able to serve as a defensive screen for the other, who can lay into his enemies for double damage in situations that would surely result in death in the single-player mode. An interesting aspect of two-player Ikaruga is that player-controlled ships can actually bump one another. During some of the close-quarters flying sequences in later levels, you'll suddenly find yourselves in desperate competition to keep from crashing into things.
Ikaruga doesn't look astonishing, but it features an inspired artistic design and smooth, fully 3D graphics, plus support for progressive scan displays. The muted background colors and violently scrolling scenery, coupled with the stark contrast between the blue-and-white light energy and red-and-black dark energy filling every screen, make just looking at Ikaruga a mesmerizing experience. The otherworldly enemy designs are best exemplified by the game's huge, surreal boss ships, and you'll be treated to some truly stupendous, cataclysmic explosions whenever you manage to defeat one. Since it's a vertical-scrolling shooter, the screen is letterboxed along the sides by default, though full-screen options are available. The game also sounds great, featuring plenty of good audio effects that never overwhelm the highly effective synth-heavy soundtrack, which seems like a throwback to many of the great musical scores from past space shooters. An almost unintelligible robotic announcer pipes up when you pull off combos and when you run into a boss.
Fans of space shooters owe it to themselves to play Ikaruga, a game that was designed both to impress their sensibilities and to challenge every ounce of their being. Yet anyone who appreciates what makes a truly great game should be able to recognize Ikaruga for its elegant design, aesthetic beauty, and sheer challenge. Make no mistake--it's not nostalgia for a bygone era of gaming that makes Ikaruga so appealing. Rather, it's that Ikaruga takes 20 years of great ideas in game design and somehow manages to put an entirely new spin on them, not for novelty's sake, but for the sake of making a game that's both familiar and utterly unique.