Get All 55 Tumors In The End Is Nigh‘s Stage 4 | All Retrograde Collectible Locations

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The diabolical Retrograde is a creepy area filled with ruined buildings and mutant overgrowth. Stay alive, and get help finding all the Tumors, Mega Tumors, and Cart collectibles with this 100% guide.

The main feature of the Retrograde is the killer mutation that grows in size whenever you get close. Avoiding this biological nightmare is your main unique challenge, but you can always leave and check out one of the other two locations available from the Split.

After completing the Overflow area, you’ll enter the Split. This isn’t really an “area” so much as it’s a crossroads. From there, you can go to the Wall of Sorrow, the Retrograde, or the Hollows. It’s all up to you, but we’re starting with Retrograde.

Check out more The End Is Nigh guides on The Escapist:

All Collectibles Locations | Pt. 4: Retrograde

NOTE: To unlock doors with a key symbol, collect the key in Zone 5: The Machine.. Another key is always located at the end of the key door paths.

Tumors are the main collectible in The End Is Nigh — there is one Tumor per level. Secret areas contain Mega Tumors, which reward you with a bundle of 5 regular Tumors.

There are 15 Tumors, 5 Mega Tumors, and 1 Cartridge in the Retrograde — for a total of 40 Tumors if you collect them all.

To “save” a Tumor, you need to leave the screen without dying. If you die and don’t reach a new level, you’ll reset and have to collect it again.

Teleport back to The End 1 and interact with your TV to play Cartridges you’ve found. Complete Cheevos for the Cartridge mini-games to unlock bonus Tumors.

Cartridge Location:

Cartridge #4: Retrograde 12 – Drop through the opening in the lower-left corner of the screen, where the strange growth doesn’t touch.

Mega Tumor Locations:

Secret #1: Retrograde 2 – Drop into the narrow hole in the bottom-left corner of the screen.

Secret #2: Retrograde 5 – Jump up and into the hole in the top-center of the screen. Use the falling platforms to climb up and reach the opening.

Secret #3: Retrograde 9 – Break the whole tower of crumbling blocks to reveal a weak floor. Buttstomp the cracked floor to find the secret path.

Secret #4: Retrograde 13 – Land on the second bottom block to lower the wall to the tumor / secret path in the lower left.

Secret #5: Retrograde 15 – Through they key door, which is easily visible right before the end of the level.

Tumor Locations:

Retrograde 1: To reach the floating tumor, enter Retrograde 2 and jump onto the handholds when the large moving pillar on the right moves to the left, letting you climb the handholds and jump left.

Retrograde 2: Floats in the upper-center of the level. Slip under the first pillar and climb the handholds quickly to reach it before you’re squished.

Retrograde 3: Start from the ending and backtrack to the handhold at the top of the shaft of spikes. Hanging from it will drop the tumor below — drop back down through the shaft to get it.

Retrograde 4: Use the handholds on the left to climb up and jump right to collect the tumor floating between two spike blocks.

Retrograde 5: Ride the center floating platforms and jump up to grab this tumor near the spiked ceiling.

Retrograde 6: Floats up from the bottom and continues up and out of the level. To get it, quickly hop across the single crumbling blocks on the left.

Retrograde 7: Another tricky one. It will float up near the fourth crumbling block. Reach the handhold, only jumping on the first, third, and fifth crumbling blocks. Hold on until you see the tumor, then jump to the fourth and back across to the second blocks to exit.

Retrograde 8: Stay low and reach the right-most falling crumbling blocks, then jump up from there to grab the tumor that floats toward the bottom of the screen.

Retrograde 9: Inside the dangerous enemy-filled passage beneath the exit.

Retrograde 10: Moves in a square right next to the shooter. Just wait and hop to avoid projectiles until the shooter and the tumor are far enough apart.

Retrograde 11: Trigger the falling pillar in the center of the screen to make a second shooter appear. The tumor is floating beneath the second shooter.

Retrograde 12: Very tricky. Found beneath the level exit. Start from the right side, and drop down — try to synchronize the shooters to make dodging a little easier.

Retrograde 13: Jump on the second block in the floor-gunk and avoid the thing until the wall lowers. Leads to the tumor and a secret path.

Retrograde 14: On the lower-left corner of the second building.

Retrograde 15: Very tricky. In the lower-right corner of the strange substance. Jump across the blocks to grab it then retreat to the starting point.

Before the Retrograde, you can visit two alternate paths — leading to the Wall of Sorrow of the Hollows. Next, we’ll tackle the Wall of Sorrow.

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