Rather than challenging you with the insane task of cornering on a tarmac road at 1000 miles per hour, Grin adapted their game design to fit the concept of extreme speed and set everything inside twisting tubes many miles long. As a Ballistics pilot you're sat on a bike magnetically attached to the walls and you have to roll around the tube to avoid obstacles. When riding round a loop in the tube you also have to make sure you're on the outside edge of the curve. Fail to do either and you'll end up floating in the middle of the tube and your speed will plummet into disgraceful three digit MPH territory again until you get it to re-attach, which takes some skill. There are only seven tracks available but it'll take you a while to learn their layout, and don't think you'll get away with just playing things by ear. When you get past 500 miles per hour (usually with the help of a picked up booster powerup) you'll need to know the turn and obstacle placing very well if you want to go more than a few hundred metres without crashing. You also have to be careful about overheating your vehicle. You can cool things down whenever you want but this also slows your vehicle a lot too, so it's better to use the insta-cool power ups dotted along the track whenever you can. Once you get experienced you can really show off by intentionally detaching yourself from the track to grab power-ups floating in the middle of the tube such as insta-cool, extra cash and Super Booster. Different parts bought with cash add some extra variety to the game by changing your rider appearance and bike speed, heat generation, durability and so on. It's a shame you can't sell old parts for extra cash though.

Look at that, I've gone two paragraphs without even making clear just how fast this game feels. Your gravbike moves amazingly fast in this game. It's a great game for showing off to your mates as you can avoid obstacles at insane speeds and push your bike to over 2000 miles per hour. You can even go so fast that the textures appear to be moving backwards which, aside from being headache inducing if you stare at it for too long, also happens to be great for hypnotising your cat. The sense of speed when you really push your gravbike is fantastic, especially if you're lucky enough to get the Super Booster powerup. You can almost feel your eyeballs being forced towards the back of your head.

To attain a steady frame rate at such silly speeds you'd expect Grin to take some shortcuts with graphics, but they clearly haven't. While it's been optimised for the GeForce 3 it also runs quite happily on a GeForce 2 and looks very nice. It's pretty hard to make the inside of a tunnel look interesting, but they've managed it none the less. Of course, half of what's impressive about the graphics is the sheer speed at which they smoothly flash by, and at times you'll see some attractive outdoor scenes when passing through a glass tunnel. Briefly.