I train the Chang style Taiji. We use the same 108 moves long form from the Yang style except there are 8 moves have been changed.
Chang Taiji has:
1. straight punch - vital punch,
2. hammer fist - turn around hammer,
3. uppercut - snake extend tone,
4. hook punch - twin peaks to the ear, striking tiger,
5. downward punch - drop down hammer,
6. side punch - diagonal fly,
7. ...
All the punching tools exist in the Taiji system.
Because the slow movement of Taiji, you can concentrate on your "hand coordinate with foot" that you may not pay enough attention when you move fast in other MA systems.