I wish they did a Care Bear video game. I know there are a couple of them already but those are sporting game, I am talking about a game in which they fight villains.
The Care Bears have had some great villains over the years, it would be great had there been a video game in which you have to fight almost every CB villains of the 80's except for maybe Dark Heart, because he turned good.
I would make Beastly a multiple level boss, because that is what he is, he is the most consident villain that constantly comesback for me like Team Rocket.
Professor Cold Heart would be the boss of a ice land like level. And the other villains would be the level boss of their own stage.
I would make No Heart the final boss, and No Heart's castle be the setting for the final level. Imagine fighting No Heart in a video game with his powers, that would be fun.