Giants Vs Halflings

In the Northern Mountains (TBD), there is a tribe of mountain giants. This particular clan is not exactly the smartest group of creatures, but their size allows them quite a bit of latitude in what they get away with. Additionally, they live in areas that only the truest of sadists would wish to live. However, during the spring, the passes open up, and the Giants will wander down into the local hillsides. Most of the time, the Giants would storm around, find wild sheep, deer, and other treats before losing interest, and returning to their mountain homes. However, one year, they found the halflings. More importantly, the Halflings of TBD.
Now this led to a very interesting situation. The halflings, hell bent on having these beasts intrude upon their diligently and finely tuned homes, refused to just give in and run and hide. Oh, no. The Halflings retaliated. En masse. Halflings are quick and nimble, and while no match for Giant in a fair fight, made sure that there were no fair fights in the defense of their hillside domes. After weeks of struggle, the giants finally gave up and returned to their mountain homes. The halflings, battered, torn, and a few less in number, returned to their way of life a bit more experienced in the ways of Giants. Being who they were, the halflings decided to learn from their mistakes, and began teaching everyone the lessons learned throughout the struggle. For the youngins, the halflings began teaching them the dangers through a game. A game that all halflings now know (and are VERY good at).
Over the years, the game has trickled down to taverns, and betting establishments throughout the kingdom. Variations have been developed, dragons, demons, Orcs, trolls, and any other manner of denizens but the heroes of the game are always the halflings in honor of their struggle against the giants many years ago.
RULES
Giants vs Halflings
House: Giants
Players: Halflings
Objective is for the halflings to roll 2 six-sided dice and meet or beat the giant’s roll on a d10.
Giant rolls first:
1: Giant Kicks halflings, house wins

Halflings roll:
Snake eyes: scares giant, nobody wins
Shin: 3: 1:1
Knee: 4-6: 2:1
Other knee: 7-9: 3:1
Thigh 10: 5:1
11-12: Giant eats halflings (maw), house wins

Variant: Go through vaults. All or nothing with each successive vault getting more difficult, put paying off more.
Orc: d6
Ogre: d8
Giant: d10
Other: d12
Dragon: d20