Gladiator style events for a birthday?

[Morba]

Hire an arena with all of those good inflatable ones and it will cost a fortune
Would be great if there was a single venue that had the lot and you just rent it for a few hours!

 

[Melm0]

A GD gladiator bash with keyboards, yes please.

Uh, might hurt a bit more than inflatables

 

[Pulsedriver]

Some genius ideas! I will check out the links though folks! Thank you