Lost Waterfall Level: You’ll need to swim up a series of vertical waterfalls to make your way to the end of this stage. It’s an interesting concept, but keeping Mario lined up with the waterfalls is a bit of a pain. Could this be why this stage was not included in the final game?
Game Genie Code: AZXUAGPX, APNUGGXE, NZNUIKUU
Lost Plains Level: This is a two-tier level. Head down the pipe to your left to reach the lower tier and you’ll find some Goombas hopping around in Kuribo’s shoe on your right.
Game Genie Code: UZSLZGYX, OGSLLGSG, GGNUGGXE, NZNUIKUL
Lost Plains Level 2: An interesting level that has you running to the right on its upper tier, and swimming to the left on its lower one. Once you reach the end, you’ll find a pipe that drops you off in a coin-collecting cloud stage.
Game Genie Code: PZSLZGYZ, XGSLLGSG, KZNUGGXE, OZNUIKUU
Lost Hills Level: Some fans have speculated that this stage might be an early version of area 7-3, due to the similarities in their designs. Have fun and try not to die.
Game Genie Code: LZXUAGPZ, SINUGGXE, ELNUIKUL
Lost Underground Level: This underground area seems to feature some placeholder art for the large door at the beginning of the stage. Check it out for some spelunker-friendly moments.
Game Genie Code: LZXUAGPZ, ZGNUGGXA, KLNUIKUL
Lost Icy Level: In this short and slippery area, you’ll have to navigate icy blocks that rise and fall while keeping up with the right-scrolling screen.
Game Genie Code: AOZULT, GGGGGGGG