A bad news for me: my brother's PSPlus subscription has just expired. This means i can't play Rayman Origins free on my PSVita... at least i got a photo of all my records...
Anyways, i waas thinking about it, and realized that Rayman 1 are really similar to Origins in specific terms, like the worlds ( Jibberish Jungle - Dream Forest, Desert of Dijiridoos - Band Land, Gourmand Land - Candy Chateau, Mystical Pique - Blue Mountains ), the World Map, collecting Electoons, Betilla and the Magician, Mr Dark being the main enemy, the enemies like hunters, lividstones, darktoons, the Photoboard that appears at the end of the levels...
But on the other hand, Rayman Legends is a bit more similar to Rayman 2, but i can't really relate them to each other - the fact that there are Teensies to free, Pirate-like lividstones, Lums playing a major role ( unlocking levels and characters, increasing awesomeness rank ) than just freeing Electoons and collecting - worthless - Lum Medals, but that's it. They don't have as much similarities as RO and R1.