Fliprus Floes is the secret level in Frosted Glacier in New Super Luigi U.
Star Coins
- Star Coin 1: Go on the crate under the twentieth and twenty-first icicle and have it raise closer to the platform above to reveal a hidden Star Coin.
- Star Coin 2: Jump over the spike being blown by the first River Piranha Plant.
- Star Coin 3: Jump on the sixth Fliprus and get the third Star Coin.
Hidden Luigi image
At the beginning of the level, find the hidden block at the same spot of the tree, jump on it, and find another one by just jumping revealing a 1-Up Mushroom and a picture of standard Luigi from Super Mario Bros. jumping.