PIZZA TOWER - WAR, LAP 3, P RANK, WITH PIZZAFACE. = PAIN
...AND SUFFERING
Edit: I did Lap 4 on Hardmode! It was hell! Check it out here: https://www.youtube.com/watch?v=Q_pL4dzP-Zc
Here's a link to the lap 3 mod if you'd also like to suffer like I have.
https://gamebanana.com/mods/429698
Edit: Make sure to give some credit to Voided Fox, they're the only other person I know who's done this challenge, and they did it a week before me to boot. Here's their run: https://www.youtube.com/watch?v=HWnDjevSQE8