Level E2-7

Level E2-7 is the fifteenth course of Orbiting Observatory in Mario vs. Donkey Kong: Tipping Stars.

The level features two Mini Marios, one of which carries a key that unlocks the goal door.

Overview
The Minis have to traverse a succession of challenges divided into sections, involving mostly Pink Blocks but also Blue Lifts and Red Girders. Only the Key Mini Mario is initially usable, as the keyless Mini Mario starts facing a Shy Guy with no means to destroy it.

The Key Mini Mario starts in the upper-left, facing the nearby goal door. However, a Cannon Kong prevents access to it and shoots the toy in the opposite direction when entered. The Mini will be shot through a long corridor to the other side of the stage, where it grabs onto a Ladder and climbs it to the upper platforms. Once at the top, it will head back, and the player should bridge the gaps that follow with several Pink Blocks and lead the Mini into a Cannon at the base of the area. With this Cannon, the Mini should blast diagonally to the left and continue marching on the higher platforms, using Pink Blocks and avoiding a Thwomp. After collecting a few Lift Pickups, the toy will fall inside a red Split Pipe that warps it to another section.

As the Mini comes out of the pipe, the player should immediately use the acquired Pickups to draw a Blue Lift between the Rivets further down, preventing the toy from walking into the wall of spikes ahead. Lower down, the Mini will collect more Lift Pickups and follow a route consisting of numerous rivets. After navigating several Blue Lifts while avoiding spiked surfaces, the Mini should encounter a wall of Pink Blocks to turn back. Following the same route backwards, the Mini can eventually pick up a pair of Hammers and destroy the Shy Guy that keeps the other Mini Mario immobile. With the keyless Mini Mario leading the pair, they should head on to a yellow Split Pipe.

The pipe leads them back to the starting area, though it grants them access to a secondary pair of Hammers that stuns the Cannon Kong, gaining passage to the door. However, as the keyless Mini Mario is in front, it bumps into the locked door and forces the Key Mini Mario to turn away from it. They eventually fall inside a tight gap and end up in a short tunnel with several Lift and Girder Pickups. From here, they drop into an area where the player has to quickly position Red Girders across the first two rivets to save the Minis from falling onto spikes. After going up a high Blue Lift, they march further to the right on some Pink Blocks and go down an opening in the ground that brings them inside the yellow Split Pipe from earlier. Returning to the starting area once again, the Key Mini Mario now picks the Hammers and stuns the Cannon Kong with them, then reaches and unlocks the door. Both Minis enter it and the level is cleared.

M Coin
The M Coin is left from the yellow Split Pipe at the bottom of the stage. Before the final plunge into the pipe, the player should build a long Blue Lift to the coin. This will prevent the Minis coming from the left section to fall into the gap that directly leads to the pipe, and instead take the lift where they also have access to the coin.

High scores
The following high scores apply in both the Nintendo 3DS and the Wii U versions of the game.
 * Bronze trophy: 7000 points
 * Silver trophy: 10000 points
 * Gold trophy: 16000 points

Statistics
The following data applies in both the Nintendo 3DS and the Wii U versions of the game.
 * Pink Blocks: 5
 * Red Girder Rivets: 6
 * Blue Lift Rivets: 16
 * Pink Block outlines: 44
 * Split Pipe pairs: 2
 * Hammer pairs: 2
 * Girder Pickups: 5
 * Lift Pickups: 7
 * Coins: 28
 * Large Coins: 4
 * Enemies:
 * Shy Guys: 1
 * Thwomps: 1
 * Cannon Kongs: 1