Tiers are a fanmade system to help organize and compare the different forms in the game. The main tiers are tier 1, tier 2, tier 3 and tier 4. Tier 1 is the first form you get on Earth tier 2 is the form you get on Namek tier 3 is the form you get in space and tier 4 is the form you get in destroyed future (the first form in future for saiyans). There are also some other smaller tiers these are tier 1,25, tier 1,5 and tier 5 these exist because the system was made for all races to have the same main tiers and to not course confusion by having for exaple majins tier 2 be saiyans tier 4. This is because majins only get one form on Earth while saiyans get three so it seemed like a better solution to give saiyans, humans, jirens and freizas some tier 1,25 and 1,5 forms so that a majin tier 2 also would be a saiyan tier 2.
Tier 1 forms:
saiyans: super saiyan
humans: kaioken
freizas: second form
namekians: potential unleashed
majins: power boost
jirens: emotion
Tier 1,25 forms:
saiyans: ascended super saiyan
humans: kaioken x4
freizas: none
namekians: none
majins: none
jirens: none
Tier 1,5 forms:
saiyans: super saiyan 2
humans: kaioken x20
freizas: third form
namekians: none
majins: none
jirens: half emotion
Tier 2 forms:
saiyans: super saiyan 3
humans: mystic
freizas: final form
namekians: ultimate namek
majins: purification
jirens: full emotion
Tier 3 forms:
saiyans: super saiyan god
humans: mystic kaioken x10
freizas: golden form
namekians: god namek
majins: true anger
jirens: fear
Tier 4 forms:
saiyans: super saiyan blue
humans: god human
freizas: perfected golden form
namekian: awakened namek
majins: metal majin
jirens: hate
Tier 5 forms:
saiyans: super saiyan blue kaioken x10
humans: none
freizas: none
namekians: none
majins: none
Heals and full power super saiyan are not forms and prestige forms are just (insert race) prestige x tier x.