How do the Ghosts in Pac Man Move? →

The ghosts in Pac-Man are among some of the most enduring enemies in video game history, thanks in part to their surprisingly difficult to predict movements which make the game a constant challenge for new and seasoned players alike. However, as it turns out, the ghost’s movements are defined by a deceptively simple set of algorithms thought up by the game’s designer, Toru Iwatani.

The Original Super Mario Game Was Designed On Graph Paper →

“Back in the day, we had to create everything by hand,” Nintendo designer Takashi Tezuka said in a video released as part of Nintendo’s E3 announcement Tuesday. Every square of land, question-mark block and Goomba had to be hand-drawn and colored on graph paper. When they were happy with the design, they sent it off to a developer to code. Fixing errors or making changes was tricky. Shigeru Miyamoto, Mario’s creator, said whiting out mistakes was too messy, so they overlaid opaque tracing paper on top of the level being drawn.

Be sure to check out the embedded video starting at 41:11.

How in the Hell Did NFL Blitz Ever Get Made? →

The game was quite obviously not a simulation in the realm of the Madden NFL franchise or NFL Quarterback Club, but it was disconnected from reality in a revealing way. The NFL Blitz team wanted to include everything people loved about football and take out the things they don’t, creating a consequence-free version of the sport. Keep and exaggerate the bone-splitting hits; lose the killjoy penalties and injuries.