The training system is cool but its kind of weird that punching things makes you faster. Each skill should have their own way of increasing that skill.
Strength: Punching things
Dexterity: Running
Will: Using ki techniques
Constitution: Getting hit
Mind: A meditate function maybe? or use of the training minigames like the one where your clicking the green circles
Concentration: Charging
And mine idea are take the superform lvl 4,and,at local,add a Mastery (MAS)at the stats.They not are like the others stats.To up him u will need use u max form for 1 day in time chamber.When u do it,u get 1 new more mastery,and any mastery will go to the form specific.EX:If u are 1 of mastery,u will get mastered the lvl 1 super form(ssj),if u be 2 u will master the lvl 2 super form(ssj grade 2)etc…
That will run well. Form should be mastered not bought. Kinda lackluster to sit and play minigames just to unlock ssj without you know..something dramatic..like it randomly happening during a fight!