Cool game! The controls are very responsive and it's very fun to drive around. All of the upgrades were great. My only complaints are that the camera dragging behind the player at high speeds makes it kind of hard to see where you're going, and that it's sometimes hard to tell what will and won't deal damage in combat situations (i kept getting randomly damaged just by sitting in front of enemies ;-:). more feedback with sounds and effects for damage/collisions would help with this.