The only Rayman game I like is simply titled Rayman. It's the first in the series, and the best. It is one of my favourite games, it is also the game that I get most annoyed at. Boy, how many times I threw the controller. It is 2D. The other games were ruined by their enemies. Pirates are lame.
Betilla the Fairy is in Rayman, I'm guessing that's who 'tily' is.
I don't know about the teensies, they may be things you have to save in Rayman 2. Electoons are the ones in Rayman, are they in the game? What about Mr. Dark?
The weird thing about Rayman is you never even fight Mr. Dark in the end, just his mixed up minions.