The Santaclautchi starts as a small house with a smoking chimney instead of an egg, and you have to set the date as well as the time. It hatches into a very plain looking character. The icons across the top are: a star for the meters, a covered pot for the food, a Christmas stocking for the game, and a bag for items. Across the bottom they are: an "S" on a towel(?), a Christmas tree, a television, and the attention icon is a bell. See below for description of each icon. The blank background screen has a row of rooftops across the bottom, and Santa and a reindeer are flying at the top.
Meters- When you select the meter icon, there are 2 sets of meters. The first one has the 4 food hearts, 4 happy hearts, 4 bell shapes that fill when you get 4 Sant items, a bar meter, and age & weight screen. The second set of meters is like a reserve of food that the character takes from when he is hungry. There are only 2, one for food and one for snack. Each holds 4 food or 4 snacks.
Food - The food is round, and looks like a Pokemon Pokeball. The snack is a piece of cake. Even when it's hungry, it will not eat from you directly. The only way to feed him is to fill his food and snack reserve, then he takes it as he needs it. As long as the food reserve meter is full he will not take anymore, even if he is hungry.
Game - The game is very simple. There are 3 beds. You choose which bed you want to choose with the "A" button, and select it with "B". He will jump up and down in the bed and then one of four things will happen. He might get mad and turn dark, in which case you lose. Sometimes he will see a bed with a "Z" above it, and sometimes you will see a bed with a sleeping Mametchi or another character. If either of those happen he gets happy and you win. The forth thing that happens is that he might find an item. I did not find any items until day 3. Items will be explained later.
Bag - This is where items are kept. Sometimes when playing a game you find items, and on each day you get 1 item from the Christmas Tree icon screen. The first 4 are a Christmas tree ornament, a roll of wrapping paper, a stick of some kind, and an egg with antlers. The last 2 items appear to be a secret. Each of these items will allow you to change your character in some way. When you select an item it transforms into an article like a hat, a transportation device, another character, etc... then a curtain comes down and a drumroll starts. When the curtain comes up about 5 seconds later, he is a different character, or he might have another character onscreen with him. You can hold up to 6 different items, and up to 7 of each individual item. The ornament will change into either a top hat, a winter cap, or a Santa hat. The wrapping paper turns into a either a Sant suit or a penguin suit, and the stick thing turns into either a skateboard or a sleigh. The egg with antlers turns into a hatching egg, and a second character joins him onscreen! The first one was a 2nd generation tamagotchi character, and the second one was a little reindeer. In the instructions there are pictures of four articles of Santa's: a hat, a shirt, a reindeer, and a sleigh. When you get all 4 of these items, the Bell meter on the meter screen will be full.
"S" - This icon makes a big duck fly across the screen. I didn't know what this was until my character disappeared on the second day. The screen was completely blank and no icons would work except this one. The big duck flew across the screen and dragged him back.
Tree - The Christmas tree icon displays the month and day beside a closed window. When you push the "B" button on this screen, the window opens and you get an item such as a Christmas ornament, roll of paper, or other items. Unfortunately, the window stays open all day, and then next day it's closed revealing a new item again.
T.V. - The television icon shows a different scene each day, and sometimes changes. The first day I saw a small babitchi beside a Christmas wreath. The second day the character was bigger, and he was jumping up and down beside a Christmas tree. On the third day there was a cow character and the tree was lying on it's side, then later there was an angel sprinkling dust on the tree. On the forth day there was a ginjirotchi opening and closing his mouth, and the tree had a happy face. Later there was a Mametchi talking with the tree, and the tree was talking back!
Bell - The attention icon is a bell, but I haven't seen it light up yet.