Goku
super level 1:angered when krillin was killed by frieza
super level 2:training in the afterlife
super level 3:training in the afterlife
super level 4:when he seen Pan crying goku got angered

Gohan
super level 1:training in the room of spirit and time
super level 2:angered when Cell crushed android 16 head
super level 3:never reached it
super level 4:never reached it

Vegeta
super level 1:traning out in space
super level 2:reached it while being Majin Vegeta
super level 3:never reached it
super level 4:Bulma got him mad or something like that

Trunks
super level 1:back in his original time
super level 2:never reached it
super level 3:never reached it
super level 4:never reached it
Trunks has went acendent saiyan though