Tetris Cake - You'll Simply Fall in Love With It

Tetris Cake
Who says you can't play with your food? Delight your favorite gamer with a Tetris cake and be the coolest cake baker in town.
So the gamer in your life is having a birthday, which calls for cake. Sure, you could make a typical round yellow birthday cake with frosting flowers and the rest, but your gamer isn't "typical" - surely he/she deserves a cake that speaks to his/her passions, right? So, a gamer cake it is!

But what if your cake decorating skills leave much to be desired? You don't see yourself sculpting World of Warcraft characters from fondant or illustrating a Call of Duty scene with gel icing, so... what then?

Tetris to the rescue! Tetris is a beloved classic; with 95% global exposure on 50 platforms and over 132 million paid mobile downloads, you can be sure the homage will not be lost on your audience. But, the best part about a Tetris cake is that you only have to be able to cut straight lines, you can use a cake mix, and the finished product will already be portioned out.
Bake Your Cake
Bake the cake
Mix white cake mix (not yellow) according to the instructions on the box. One box of mix will result in a somewhat dinky finished product, so use two or more boxes depending upon the number of people you need to serve.
Divide the batter or mixture of cake
Divide the batter evenly between six small bowls, and tint each bowl with food coloring. The Tetris colors are red, orange, yellow, green, blue and purple, which are fairly standard food coloring colors. But, if you're stuck with a very basic set, mix red and yellow to make orange, blue and yellow to make green, and red and blue to make purple.
Separating pouring batter in pan
Pour each color into its own pan. If you're only using one box of mix, loaf pans work best. For larger quantities, you can go all the way up to a 9"x13" pan - what you're looking for is a flat, rectangular sheet cake in each color. The batter should be about an inch deep in whatever pan you use. Bake according to the directions on the box, but keep a close eye on the oven, so they don't burn.
Prepare Your Surface
Look around for a surface on which to serve your cake. To mimic the Tetris playing area, you need a rectangular area about as wide as your cake, but twice as long - this allows you to arrange the finished pieces as if a game were in progress. A tray works, but a robe box is a better option, if you have to transport the cake. Line the back with light blue foil or paper to complete the look.
Cut the Cake
Cake Slice
Once your cakes are baked and completely cooled, remove them from the pans and lay them out on the counter. Use a long serrated knife to cut off the domed tops - you need the top of each cake to be level, so consider whatever you cut off the baker's tip, and eat it.

Use a very sharp knife to lightly score the top of each cake in a 1"x1" grid. This will assist you in cutting the pieces. Each Tetris piece is made of four individual squares put together in seven distinct shapes, with each shape belonging to one color.

Cut your red cake into the zigzag shape with two top squares offset to the left of the two bottom squares, getting as many of these pieces as you can. Cut the green cake into the opposite zigzag shape, with the top squares offset to the right of the bottom squares.

Cut your blue cake into straight lines and your yellow cake into cubes, each with four squares per piece. Cut your purple cake into T shapes and your orange cake into L shapes, each with four squares per piece.
Cake Frosting
Divide white icing into six separate bowls and color with food dye the same way you did the cake batter. Use a butter knife to frost the cut pieces, matching the frosting color to the cake color. Once the frosting has set somewhat (an hour or so in the fridge usually does the trick), use black gel icing to outline the squares that make up each piece. Gel icing doesn't set, so don't touch it.
Play Tetris!
This is the fun part - although your cake pieces aren't falling from the sky (or at least they shouldn't be), you get to play a mini game of Tetris as you arrange them on the serving tray. Concentrate most of the pieces at the bottom (the short end of the tray), but don't make any complete lines - in the game, completed lines disappear. Leave gaps. Leave a few pieces in awkward positions, and leave the last piece disconnected from the rest, as if it were the piece in play.
Present your masterpiece to your beloved gamer, and enjoy the fact that because each piece is pre-cut and exactly four squares, there will be no arguments over who got the bigger piece. Like cupcakes, only cooler and much less trendy.