Garry's Mod

Garry's Mod, formerly 3D Studio Max, is a mod of Half Life 2 developed by Garry Newman. It is a sandbox that can be used to make images, videos, and alternate gamemodes. Various addons developed by other users can be downloaded.

Garry's Mod requires a Steam account to purchase and currently runs independently of Half Life 2. As of Garry's Mod 10, it is no longer free and requires a Steam account, but Garry's Mod 9 is still unofficially available for download but is no longer supported by Garry or addon makers. Garry's Mod is currently at Garry's Mod 13.

Videos can not be in Garry's Mod itself, and stop motion or video capture must be used instead.

Use by Untergangers
There are three Hitler models available: Sniper Elite Hitler, Downfall Hitler(which appears to be no longer available), Real Life hitler, which is a Breen reskin, with varying levels of beard visability, depending on the version, as well as a reskin of the Führerfilly from Supermariogalaxy13's downfall parodies. Both comics and videos of downfall parodies exist.

In downfall parodies Hitler has been known to play, review, or get stuck in Garry's Mod.

Shiga95 uses Garry's mod for some of his parodies.