The primary goal in each level is to rescue as many civilians in a futuristic society and extinguish fires along the way, and each level has an end-level boss too. The game puts an emphasis on speed by punishing you if go too slow and rewarding you with bonus points at the end depending on how quickly the level is completed. If you take too long, the area becomes more and more dangerous and the surrounding area will be engulfed in flames and explosions for a few seconds. Each level consists of a series of multi-storey rooms and corridors, divided by interlocking lifts and doors.
In order to power your shield and rescue survivors, the ranger must collect crystals scattered throughout the level or extinguish fires. Just like in Sonic the Hedgehog games, getting touched will cause you to drop all of the crystals you had collected and you must gather them quickly before they disappear. There are various other hazards during your quests. There can be explosions near you or walls collapsing. Fortunately, before an explosion, there will be an audio cue such as a high pitched whistle to alert you of an incoming danger but this is not always helpful.
Each ranger can hold up to two projectiles: a quick Pulse that can extinguish small flames and turns them into crystals and a Laser Blast (triggered by holding the shoot button) which can take out bigger flames and take down enemies and bosses, but won't generate any crystals.
Controls are sometimes frustrating, especially when trying to jump (or fly) to higher ground. But rather than that, I definitely found the game really enjoyable!
The game is a real show off some of the capabilities of the console in terms of graphics and sound, with great lighting and audio effects. Everything run smooth in a full 3D environment, whilst textures are fine along with some pretty cool lighting effects.
An important aspect here is the game's audio. Although there is no music for the most part, the audio is very well done. There are several SFX which have a nice futuristic ring to them. Not to mention the CD-quality speech during gameplay, with which you get help from the control center such as, the route need to be followed to complete your tasks.