Multimedia Fusion 2

Multimedia Fusion 2 is one of the most frustrating pieces of software ever written for large projects. The developer was stupid enough to make Dungeon Dashers with it and now regrets it every day.

Multimedia Fusion 2 is commonly known as MMF or MMF2.

TIP: If you search for "MMF" in Google Images, you will almost certainly find a certain type of pornography.

Other notable titles made with MMF2 are:
 * Saira
 * Hotline Miami
 * Knytt Stories