100 Rooms of Enemies is the third and final update to the original game, featuring several improvements, multiple unlockable playable characters, the ability to have Arcade and Do or Die in the same rom, and a brand new mode known as "Nightmare". 100 Enemy Rooms is a thrilling and unsettling game that will put your intellect and skills to the test! Our best companion, Mario, is trapped in an endless world filled with hundreds of enemies out to kill him, and you must help him defeat each foe in order to succeed.

Go as far as you can, test your ingenuity, and get to the end without ever preserving the process. Are you prepared to challenge your nerves? Only the most courageous competitors will ultimately prevail.