In the Advanced level Daedalus, there is an Easter Egg directly under the end 
portal. The easiest way to get it is to aim yourself as if you are going to jump 
onto the platform from an angle (as if to jump over the space between). However, 
only fall just short. As you fall under the platform, use your jump blast. If 
done correctly, your blast will launch you into the bottom of the platform and 
you will have an Easter Egg. However, you will fall to your death. Make sure 
that you are not trying to make par while attempting this. Also as this is one 
of the longer levels, it is also a good idea to have a nearby checkpoint.