Macintot
WeeWoo
The final boss of the first Fossil Fighters. That game was good at a lot of things, but writing was not one of those.
Guhnash
After going through most of the game, dinosaur-themed aliens suddenly show up with almost no foreshadowing and warn you about a giant planet-eating space fish that is heading towards Earth, who has also not had any foreshadowing. You and either the alien or your best friend then have to teleport into the space fish and have a battle against its three brains. And the fight somehow either makes your partner get amnesia (if the friend) or get trapped in basically carbonite (if the alien) and the way to fix them is through the power of dance(tm) and this is somehow the emotional climax of the game.
After going through most of the game, dinosaur-themed aliens suddenly show up with almost no foreshadowing and warn you about a giant planet-eating space fish that is heading towards Earth, who has also not had any foreshadowing. You and either the alien or your best friend then have to teleport into the space fish and have a battle against its three brains. And the fight somehow either makes your partner get amnesia (if the friend) or get trapped in basically carbonite (if the alien) and the way to fix them is through the power of dance(tm) and this is somehow the emotional climax of the game.