darkSpyro

SSA: All Skylanders level 10, all upgrades, all heroic challenges done, 3 stars in all levels, all collectables. all radiance crystals on 3ds
SG: All Skylanders level 15, all upgrades, all quests, all heroic challenges possible done, 3 stars in all levels, all arenas done, all collectables. Same goes for nightmare mode. all stars and stuff on 3ds
SSF: All Skylanders level 20, all upgrades, all quests, all collectables, 3 stars in all story levels, time trials, score mode, bonus missions, arenas, rank 80. (the other accolades don't add anything for me, and some swap zones are unfairly difficult) all stars and stuff on 3ds
STT: All Skylanders level 20 etc. all collectables, all villains trapped, rank 40, same for nightmare mode, platinum rating on all rhythm challenges except kaos (too difficult, going to stick with gold), 80 out of 81 stars and all hats in 3ds version (dragon ride level is unfair)
SSC: All Skylanders and vehicles level 20 with all upgrades on both paths, all accolades and collectables, all stars on the 3ds version

Story mode and extra minigames completed once any difficulty and in Nightmare. That's it for me, don't care about 100%.

3 stars on all levels.
Beat boss on nightmare.
3 stars on all bonus missions/Swap zones/arenas.
Highest Portal Master Rank possible with the size of my collection - 80/32 I think.
All accolades possible with the size of my collection.

That's for the games. The figures must eventually be maxed as well. All heroic challenges possible, level 20, all upgrades, all quests, 65000 gold.

Spyro's Adventure - 3 stars in every chapter, all accolades obtained (unless you don't own every Skylander), all heroic challenges that you've unlocked completed with every Skylander, all Skylanders to level 10 and fully upgraded.

Giants - All above, but level cap increased to 15, all hats bought/obtained and all arena battles completed.

Swap Force - 3 stars in every story mode/time attack/score attack chapter, 3 stars in every swap zone/bonus mission/arena battle, all Skylanders to level 20 and fully upgraded, all hats bought/obtained, all accolades obtained, maxed out portal master rank.

Trap Team - 3 stars in every chapter, all Skylanders at level 20 and fully upgraded, Kaos' doom challenge complete, every hat and trinket bought/obtained, all villains trapped with their quests complete.

I've never completed a Skylanders game...

According to what I typed in my backlog, I've made up Completionist and "Super-Completionist" goals. I don't have SSC so I can't list that.

SSA Completionist - Three-star all levels, including adventure packs, and collect all winged sapphires in the ruins.

SSA Super-Completionist - Unlock all accolades, collect and max all 32 characters of each path (64 total), and clear all possible heroics for each of those figures.

SG Completionist - Three-star all levels including adventure packs, collect all skystones, clear all arenas, purchase all shop items, and beat the game on Nightmare Mode.

SG Super-Completionist - Collect everything as mentioned above, max all 40 characters of each path (80 total), clear all heroics and quests of all of those figures, unlock all accolades, and 100% Nightmare Mode.

SSF Completionist - Collect all stars regardless of difficulty. Skylander collection accolades do not count

SSF Super-Completionist - Collect every star in the game including skylander collection ones. Max all 48 skylanders of each path (96 total) as well as all quests. 100% the game locked on Nightmare Mode.

STT Completionist - Collect all stars in the game.

STT Super-Completionist - Collect all stars locked on Nightmare Mode. Max all 57 skylanders on each path (114 total). Trap and evolve all villains.

just beat kaos

There are various levels of "complete" for me:

• Basic Completion: Beat the final boss.
  
• 100% Completion: Beat with all stars all of the levels, including Adventure/Expansion/Racing Pack levels. Also beat all of the challenges (just not Heroic).
  
• Collector 100% Completion: Make all of the objectives before, plus have all figures from the game (not counting variants).
  
• Super Collector 100% Completion: Make all of the objectives before, plus have all of the in-game variants from the game and all of the figures from all of the previous games (counting in-game variants).