Having your alarm shrieking at you to get up, isn't the best way to get yourself up, especially in the cold winter mornings which have hit us in the northern hemisphere. It's a first world problem. Having the volume of your alarm rise slowly every morning can ease the process and make it a little less painful. It will also help you avoid waking up everyone else in the house.
An Android app which does exactly that is Alarm Clock Plus. It looks fairly similar to the built-in alarm clock which comes with Android so it should be familiar to most. You can choose how slowly you want the volume to rise, whether it be within 10 seconds or 5 minutes. You can obviously choose any sound you like for your alarm. I use a soothing one so I don't shock myself every morning. However a follower by the name of Oscarbum did mention the Superman theme tune makes a great alarm tone.
Thanks to everyone for the app suggestions!