A strange little game whereas you play as a rolling boulder who must breach an enemy's gate several times through an obstacle course to squish a historical figure. In between turns, you are also battlefield commander of sorts, erecting defenses such as turrets, attack cows, and bombs to harass the enemy's boulder, who is similarly rushing your leader and building defenses against you. It's pretty unique, really. There's even a side mode where you're basically playing skeeball.
The general atmosphere is VERY Monty Python and I really don't have a comparison to how the gameplays- it's very distinctive. Be noted, however, the game is a bit difficult and the building defenses part is not particularly interesting compared to rolling the boulder around. Still, I would recommend trying this title out.