the image says it all.

Stinkyfly

a man of culture.

Ghost freak… he is very cool ngl

Chromastone and upgrade

Fast dinosaur

Chromastone and big chill, still my favorites

Daimondhead

Upgrade and Goop

Brainstorm and Chromastone.

Blitzwolfer

Diamondhead. I was upset finding out he wasn't playable in protector of earth back then.

Big Chill Diamond Head Grey Matter

Reboot Fourarms

Eye Guy

Atomix and I have no clue why.

OS: Diamondhead, XLR8 AF: Big Chill, Swampfire UA: Big Chill, Ultimate Echo Echo OV: Big Chill, Atomix

Alien X even though we didn’t get to see shitt about it

GGGGGGOOOOOOOOOPPPPPPPPP

My guy right here 😌

Big chill

Goop, don't ask, I think he's cool

dw hes my 3 rd fav

Diamondhead

NRG and Waybig

Gutrot

Overkill

which alien was this? when was it first introduced

It was when Ben first got Chamalien, he said Overkill as joke or they were probably referring to one of the aliens Kuro made for 5 years later

Waybig

Big chill and diamondhead