Piloting the mighty SOPHIA tank, you'll progress through a massive subterranean world with two unique gameplay modes. The first type is a side-scrolling Blast-A-Thon, where your perspective is from the inside of the SOPHIA tank. You'll have to use equal measures of timing with your trigger finger, as there is nearly as much jumping as there is shooting. The second type of gameplay puts you on foot. To explore many of the underground caves, you'll have to leave the relatively safe confines of the SOPHIA to enter overhead-action stages, where you can uncover special weapons and abilities for the tank that will unlock even more areas to explore. Highly-detailed graphics, coupled with smooth animation, ensure a high-quality graphical experience.