2 - Insanity
Platform:
TurboGrafx-16/PC Engine
Released on Dec 31st 2009
3 - Pyramid Plunder
Platform:
TurboGrafx-16/PC Engine
Released on Mar 01st 2013
4 - Inferno
Platform:
MSX2
Released on Dec 31st 2017
5 - Insanity X
Platform:
Xbox 360
Released on Jun 01st 2011