# CoD fan makes Zombies crossovers

> A Call of Duty fan created zombies crossovers with Wii Sports, Portal and Fortnite using source code.
- Title: CoD fan makes Zombies crossovers · Dexerto | Shortify
- Summary: A Call of Duty fan created zombies crossovers with Wii Sports, Portal and Fortnite using source code. A Call of Duty fan used source code to add Wii Sports…
- Keywords: call of duty, zombies, wii sports, portal, fortnite, cooperative, gaming, sports, CoD, fan, makes, crossovers
- Source: Dexerto — https://dexerto.com/call-of-duty/call-of-duty-fan-creates-insane-zombies-crossovers-with-wii-sports-portal-fortnite-3414983
- Author: Nathan Warby
- Published: 2026-10-02T15:08:44+00:00
- Read time: 1 min
- Topics: call of duty, zombies, wii sports, portal, fortnite, cooperative, gaming, sports
## Source code access
A Call of Duty fan accessed World at War Zombies source code to run classic mode in their browser.
## Portal integration
They added Portal 2's Portal Gun to create working portals for quick navigation in Nacht der Untoten map.
## Mario Kart crossover
The fan used Mario Kart to control a playable character with banana skins to trip zombies.
## Fortnite building
They introduced Fortnite's building mechanics to create wooden walls blocking zombie paths.
## Sports crossovers
The fan transformed characters into NFL players and NHL hockey stars using Madden and NHL games.
## Wii Sports crossover
They created a Mii character using Wii Sports to slay enemies with boxing gloves and baseball bats.
## Key takeaway

A Call of Duty fan used source code to add Wii Sports, Portal and Fortnite elements to Zombies gameplay.