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The Unofficial Ally Challenge

I felt like revisiting this scrapped challenge, so now I fully completed it. This is a more interesting and higher quality take of the ally challenge. It's disappointing to see how these new challenges are made, they ruin the original point of challenges about introducing new mechanics/features added in the game. Not making a challenge about allies which already existed in the game for many years. You know how you could of made it more interesting? Give the player the summon ally upgrade.

Features 10 levels. Some levels require you to use the summon ally upgrade. Otherwise, it's not mandatory to use. Difficulty wise it is a bit harder than the dev challenges, but it should still be fun to play.