From Mike Booth:
All 3D animation was done in Blender, an awesome (and completely free) animation software. Shoutout to those behind the MB-Labs plugin for Blender which I used to create the base models for Lion-o, Cheetara, Tygra, Panthro, WilyKit and WilyKat. Lightning and smoke effects were done in Adobe After Effects. Edited in Premiere Pro. Thanks also to the many YouTubers who upload Blender tutorials – I must have watched hundreds of them. Ian Hubert’s lazy tutorials are particularly awesome and inspiring.