Yellow alignment creatures where corrupted by the other four
Burrowing Worms - corrupted by Chattur'gha to withstand tail swipe
Tumbling Dantini - corrupted by Xel'lotath for a mad rolling attack
Orange Firepoppers - corrupted by Chattur'gha and driven mad by Xel'lotath
Chained Creature - driven mad by Xel'lotath and from being trapped in the Tower of Power
Swipe Swifly - skilled swordsmen seduced by Mantarok's promise of riches and power into being ninja pirate zombies
Each island corresponds to one alignment
Forest Island - Chattur'gha (burning red lava flows and red minions)
Ice Island - Ulyaoth (fantastic clockwork machinations and blue minions)
Desert Island - Mantarok (Forbidden City gateway found by Pious was also in the desert)
Castle Island - Xel'lotath (the maddening howls throughout the dungeons remind of the insane asylum Dr. Maximillian Roivas was thrown to)
Crystal Island - Beany (mix of all levels, four gongs in the final level)
Croc's adventure was a plan set up by the other 4 Ancients.
Their forms where turned into crystal and shattered into tiny pieces (much like the Secret Sentinel). Then those crystals where scattered throughout the Gobbo archipelago by no other than Beany the bird (and thus knows their location).
As a revenge, the Ancients corrupt Dante and send him after the Gobbos, yellow one's beloved people
The final Gobbos are locked behind the crystal doors, thus forcing whoever is destined to save them to gather the colored crystals and once again release the Sealed Evil in a Can.
The Gobbos and their hero are oblivious to this reality and, after celebration is over, Beany brings Croc to the final Jigsaw piece and unlocks the 5th island
By this time, the Ancients move to the final stages of their plan by utilizing the crystals to turn Dante into the Secret Sentinel - basically another Red Herring for Croc
But they wheren't aiming for Croc! By defeating the Secret Sentinel, Beany only achieved a Pyrrhic Victory when shattering him to tiny crystalline pieces. This time around, it drained her from most of her strength, allowing only to return Croc safe home, before succumbing to the Eternal Darkness (sadly, we don't see her in Croc 2).
Having conquered their foe, the Ancients can now use her power for their evil ways, crafting magickal runes and spell scrolls (including the one that later on cursed Anthony), allowing them to launch an attack on Alexandra's universe.
This however, was Mantarok's own plan, which in the end resulted in the destruction of the 3 Ancients
Meanwhile, having lost Beany, Croc's Sugar Bowl universe decays (crystals no longer protect from damage, Gobbos wear clothing and Baron Dante returns)
Ending of Croc 2 mirrors the one from Eternal Darkness
Instead of Edward Roivas and the runes, we have Professor Gobbo and the colored crystals to seal away the Big Bad.
With an exception being that Baron Dante summons black Dantinis, reminiscent of Mantarok zombies.
The crystals where placed in the following order: red, green, pink/purple and blue, the last crystal being yellow.
Gex debuted with his tail-swiping platforming in 1994. Croc did the same in 3D as for 1997. Gex jumped into 3D (Enter the Gecko) a year later and ended the series with Deep Cover Gecko in 1999. Croc 2 came out later the same year and also ended the series (two mobile games where also made, but are no longer available).
Both are colorful, platforming and tail-swiping reptiles.
Both haven't seen their new adventure for a long time.
Both had their adventures took place in fantasy worlds.