Thread:Affectos/@comment-24588058-20161220053559/@comment-24588058-20161220203205

Affectos wrote:

In the show, those were caused by external DNA absorbtion. Cannonbolt's roots are more tied to the production of the original series. No 'lesson' was learned for Ditto, Eye Guy, Upchuck, or Way Big. As for Omniverse, some of those aliens feel really situational, kinda bland, or just a replacement (Fastrak/XLR8).

Oh, and that's half right. Most were unlocked by accident as well, and Way Big and Upchuck were unlocked by outside forces. And Fastrak was in Ultimate Alien, well after Alien Force. Omniverse tried introducing a lot of aliens, but every alien seen before was unlocked and was mostly used (interesting fact, the only three aliens of the past not seen in Omniverse are Fastrak, ChamAlien, and Jetray).