Firstly open your cake mix and put it in the mixer but separate a little bit of it for later. Mix it with all the ingredients it needs.

Secondly, put little drops of red food dye until it is all the right red color. Measure about a cup of chocolate morcels and mix it with the dry cake mix. Then put it in the mixer and mix it.

Then pour half of your cake mix into a square pan and the other half into the other square pan. Then get your cake mix box and bake the cake for the temperature and time said in the box.

Meanwhile the cake is in the oven, cut a piece of cardboard that is just a little bit larger than the cake. Then wrap it in tin foil, and put some frosting on it.

Now, take the two cake out of the pans and put one on the tin foil cardboard, then put the buttercream icing on top and place the other cake on top. Cover the walls and the top with the icing.

Next, roll out your green fondant and place it on the cake. With your cake flattener flatten all the walls and the edges. Get your pizza cutter to cut off the exes fondant.

Then get your food brush and with green food dye and mix it with a little bit of lemon extract and paint a cross from wall to wall and then another cross but this time from corner to corner, do other random ones as well.

Now, get the darker food dye and paint thinner in the middle of other lines, with cocoa powder do spots around the watermelon to make it look more Minecraft like.

Finally get a tootsie roll and take a little piece and shape it like a stem and with a toothpick give it some texture. Also with dark green dye color around the stem to make it look better.