Use the tank to easily cross hazardous terrain:
dcosborn suggested this yesterday, and it sounded like a cool programming challange as well as a great idea. After sitting down today and working at it for an hour, this was the result. It isn't completely done yet, but hey, BLOCKY MAN CAN DRIVE A TANK! So yeah, I'm pretty happy about it.
And trust me, running down a line of Space Pirates with the tank is...just great. And just think, I haven't even gotten the tank's cannon working yet[evil]