Fight a huge Fish Train in HIERONYMUS, a bizarre indie FPS game, based on the art of Hieronymus Bosch! (also check out those reload animations!)
https://store.steampowered.com/app/2518790/Hieronymus/
EXCLUSIVE video of the full Fish Train boss: https://www.youtube.com/watch?v=gWQRTYeZtPk
by indie dev Hurdy-Gurdy Games