Super Mario World took what made Mario 3 so fun and packed it with epic 16-bit action. While I thought it was rather simple, I soon corrected myself once I took a closer at the internal workings. First of all, the graphics are quite nice for the Super NES. Yeah, it is rather pixelated, but the cartoon style and wonderful effects make up for it. The also game is quite complicated for it's time. The 3-layer engine runs around 7 different tilesets each with diffrent scenery and enemies, and the complicated isometric map screen runs even more. To top that off, enemy generators and scrolling varations are almost always used. The heavy use of flags and scripts on the map screen make the game even more amazingly complex. However, even to people who aren't interested in Mario's internal engine design, Mario World is still every bit enjoyable. The levels come in all shapes and styles with creative enemies to match. Mario World introduced Yoshi, the dinosaur pal Mario can ride on and make eat enemies. Yoshi is vital to the game if you want to win it. Mario World also introduced many other memorable elements that make Mario the most awesome platformer around: Ghost Houses, Switch Palaces, Secret Exits, Star World, Bowser's Koopa Clown Car, Renzor, etc. Your not a real gamer until you've felt the magic of the world and suffered the burn of the challenges. If you think Nintendo is going to be soft and hold your hand like in New Super Mario Bros 2, your in for a big surprise. Nintendo was a completely different company back when the Super NES was launched, and Mario World is proof of that.