The overall game flow is shown below:
Overall Game Flow
The start screen loops while waiting for the START to be pressed.It includes a movie of Yoshi Island, as well as sky and ocean with the scale value calculated for every raster to create a sense of distance.
2.1 Yoshi Island Movie
Yoshi Island Movie2.2 Sky & Ocean
![]()
Bitmap Images of Sky and Ocean.
A horizontal scrolling-type game that continues as long as Yoshi stays happy. Yoshi is happy at the start of the game and his happiness life gauge (flowers and eggs) is full. Yoshi loses a little happiness whenever he encounters enemies and obstacles, and when the level drops to zero, Kamek's henchman come and lead him away.
The only way to defeat an enemy is to jump up and land a squishing blow! However, you do not recover a life when you defeat an enemy (^_^;).
The only way to recover a life is to (somehow) make a blimp appear and then get the egg that comes out when the blimp breaks. (Sometimes Heho comes out, so be careful!!)
3.1 BG
Three-layer scroll with the following three layers:
BG (Distant View)
BG (Mid-Distance View)
BG (Near View)3.2 Yoshi
3.2.1 Yoshi Actions
Yoshi's actions can be changed using control keys.The relationship between control keys and actions is described in the table below.
Control Pad Right/Left Yoshi walks in the direction of the input to the Control Pad. Control Pad R/L + B Button Yoshi runs in the direction of the input to the Control Pad. A Button Yoshi jumps. (During jump)
Control Pad DownSpin! L Button Yoshi faces player and shows his affection. The position of the keys differs, depending on the development board.
Note how the keys are positioned in the diagrams below.
Position of Contact Switches on the Development Board.
Key Positions when a Super NES Controller is Connected to the Development Board.
N64 Controller Key Positions when Using WIDE-BOY.3.2.2 Yoshi's Lives
Yoshi's lives are indicated by the number of eggs in his possession. The number of eggs also influences the "happiness level," which is reflected in the expression of the sun.When Yoshi encounters enemies and obstacles, the number of eggs decreases, as does the happiness level.
When the level of happiness drops to zero, Kamek's minions lead Yoshi away and the game is over.
Egg3.3 Enemies Killer & Obstacles
3.3.1 Bomu, Heho and Big Heho
![]()
![]()
(From the left) Bomu, Heho and Big HehoThese three wander around all over the map. Yoshi will lose an egg if he bumps into any of them.
You can squash them from above.
3.3.2 Killer
KillerFlies out suddenly from outrageous positions at the edges of map. Yoshi will lose an egg if it bumps into him.
All you can do is try and avoid it. Be careful.
5t
A 5-ton weight.
For some reason these are flying in the air and drop down every once in a while. If one drops on Yoshi he'll lose an egg.
All you can do is try to avoid it.
![]()
Kamek's Henchmen & Spikeballs
These henchmen flutter around the map, dropping spikeballs.
When a spikeball hits the ground it begins rolling around. They're sharp so they hurt, causing Yoshi to lose an egg when he gets poked.
All you can do is try to avoid them.
When Yoshi runs out of lives, Kamek's henchmen fly in and take him away. (Game over)
Clay Pipe
The usual pipe, but this time only in blue.
Doesn't do anything except get in the way.
Definitely the saddest scene in this demo.The player can't do anything except watch poor Yoshi get led off to the mysterious castle.
Once he's been carried off, the program returns to the Start screen.
The Mysterious Castle
AGB-06-0033-001A (2/26/01)