the only dragonballs that are availlable now are from the lvl 5-20 quests. these are the tier 1 dragonballs wich only give the capsule corporation armour (very good for lvl 20-35, it is advised to upgrade it).
The tier 2 dragonballs are the one that can give you transformation skill, HTB2, dragon buffs, dragon armour/master class weapon and jewellry(lvl 55). but the tier 2 dragonballs can only be obtained from dragonball hunt events and since daneos hasn't added this yet to the game, you can't get them. if there is a dragonball hunt event, it'll be shown in the icons in the lowerright corner.