Hypothetical Situation - Stairs

[apalrd]

Look at robots from 2004. They climbed steps very well.

A couple of highlights:
our robot (33):
The entire top piece (the big refrigerator-box) moved by window motors, and had wheels on the front. It would tip back, and get the wheels onto the platform, then move down (lifting the robot, but the back two wheels remained on the ground). Then it would drive up. Almost all of the weight of the robot was in the chassis (it was full weight, 130lbs with battery, and the entire top piece weighed around 10lbs), so it wouldn't tip over easily.

Simbotics (1114): They had four wheel pods (two crab pods and two casters) each with a pneumatic piston. They would lift all of the pistons, then run into the platform. Sensors on each pod would lift it as it hit the platform.