Cabanon wrote:those are not easter eggs but game's standard functionnality. heck you even need to do it to get Stars.
Huh? You need to move the camera around after beating the game to spot Mario in places where he’s otherwise not visible during the ending to earn stars? How is that “standard functionality?” You need to hit Chain Chomp with a Bob-omb that doesn’t accomplish anything to earn stars? You need to hop up and down on the back of Whomps for six extra coins before you stomp them to earn stars? You have to run circles around wooden posts to earn stars? You have to use cannons during Koopa the Quick races to earn stars?
No, these are the very definition of Easter eggs, and when the OP specifically requested Easter eggs from the first two levels, I obliged. Heck, even finding Yoshi after 100%-ing the game is an Easter egg.
Vestigial stuff, clipping errors (pull yourself up from under the bridge in level 1), and run-of-the-mill secrets (like warps) are not Easter eggs. Non-essential, generally obtuse, things deliberately left in the game that they don’t expect players to look for, find, or need are. Actually, hanging under the bridge in level 1 might be an Easter egg, though I’m more inclined to believe that they just used the wrong property for that object early in the game’s development and never went back to change it.
Taking a warp during the Koopa the Quick race may seem obvious but it’s very similar to taking Marin to the Crane Game in Link’s Awakening, which is definitely an Easter egg (triggers a scene where she plays, captures the operator, and gets you kicked out). Throwing the Bob-omb at the Chain Chomp is needlessly risky and doesn’t accomplish anything other than a useless reaction from the chomp that some may not have known exists. It doesn’t help you stomp or circle the post or free/defeat the Chain Chomp. It’s an unessential, unnecessary, Easter egg that was left in the game for select players to notice.
They didn’t expect the average player to know or find that you could get coins by doing something as abstract as tightly circling the posts. Definitely an Easter egg and even listed by Nintendo as such. It isn’t “standard functionality” for normally playing the game when there is no indication or hint in the course of playing the game.