Secrets And Easter Eggs From The OdysseySuper Mario Odyssey is jam-packed with hidden details and subtle references to past Mario games. For series veterans, these are easy to spot, but for newcomers they can be more obtuse. With so many fun details to notice and discover, we've gathered nine fascinating secrets and easter eggs that we've found in the game so far. Click ahead to see what we saw during our early runnings with the game.After much anticipation, Super Mario Odyssey is out now for Nintendo Switch. It's the latest installment of Nintendo's tenured franchise starring the lovable Italian plumber. You once again control Mario as he works to rescue Princess Peach from Bowser. But this time around, he has the help of a new hat sidekick named Cappy, who he can throw at certain objects or enemies to temporarily possess them and use their unique abilities.Check out our full review of Super Mario Odyssey, and for more about the game, check out our roundup article containing features, gameplay videos, and everything you need to know about Super Mario Odyssey. You can also check out our roundup containing tips, guides, and things we wish we knew. Sleepy MarioIf you stop controlling Mario for a prolonged period of time, he'll eventually lay down and relax. Listen closely and you'll even hear Mario talk in his sleep about Princess Peach and his favorite pasta. Wait even longer and a bird (indigenous to the Kingdom you're in) will swoop in to perch upon Mario’s nose. Dangerous CactiIf you accidentally walk into a cactus while exploring the Sand Kingdom, the spines will get stuck on poor Mario’s nose. It's not a pleasant sight, but the attention to detail in this instance is amusing unto itself. Mechanic MarioThe Mechanic Outfit you can purchase from the Crazy Cap store is a reference to Mario's appearance in Famicom Grand Prix II: 3D Hot Rally on the Famicom Disk System. Both him and Luigi can be seen wearing the outfit the game's promo art and instruction manual. PonchoMario's Poncho costume is a direct reference to the his appearance in the Game Boy port of arcade puzzler, Qix. In that game's intermissions, Mario could be seen wearing a sombrero and poncho while playing a guitar in the middle of a desert. Mario Cat and PeachIn multiple Kingdoms, you'll often encounter walls with art of both Cat Mario and Cat Peach. These feline versions of Mario and Peach should be familiar to those who played Super Mario 3D World for Wii U, which is where this special form made its first appearance. Diddy Kong CostumeOne of the costumes you can purchase at a Kingdom's local yellow Crazy Cap store is a blatant reference to Diddy Kong. Heck, it actually makes you into Diddy Kong (with the face of Mario). This snazzy outfit can be unlocked in the store by collecting enough moons, or scanning the Diddy Kong Amiibo into Uncle Amiibo.We're hoping Nintendo will one day release an update offering more outfits like this. Can you imagine if there was a Samus Mario costume or even a Link Mario costume? The possibilities are endless. Warping Into The OdysseyThe pipe spewing steam on the back of the Odyssey can also be used as an alternative way of entering it. While doing so isn't entirely useful or practical, it's a nice touch! Dirty ClothesIf you roll on the ground in the Sand or Beachside Kingdom, your clothes will pick up some of the dirt. It's not one of the craziest things you can pull off in the game, but it's a nice detail worth pointing out. Fedora Wearing Shiba InuIn a few of the Kingdoms you explore, you'll come across an adorable Shiba Inu wearing a fedora. Stick with this stylish pup long enough and he'll eventually lead you to a spot where he'll dig up some coins for you. If that's not enough of a reward for you to stick around with this cute doggo, then try playing fetch with it instead by throwing Cappy when you're near him.