Not for the faint hearted...
Here is a workout that we did in the Spartan class one Saturday..
15 Alternate leg lunges
15 Jump Squats (Try to jump up two stairs and then back down)
15 Squats
10 Single leg dips (Ten on each leg and balance carefully)
10 Steps (Two stairs high up and down)
15 Alternate leg toe touches
10 Push ups
15 Dips
Do all the above 5 times in 30 Mins and prepare to sweat.