Yes, it's just those 3. Cathe also has heavy bag work in her Lives though. Out of the 3 my favorite is XTrain, then Rockout Knockout, then MMA Boxing. I find I have to adjust my punches on the bag, especially the upper cut. I tend to punch out rather than up on the bag otherwise my glove just slides up the bag and I don't get any force behind the punch. Also, for hooks, my bag is quite narrow, so I find it better to have my thumb up, palm facing me, rather than thumb horizontal and palm down. You have to brace your core more when using the bag, but it feels good to just hit something.