Alright, I think I've got it.
Nightmare (Dat Bass Remix)I replaced the drums with more bass-laden samples, changed the pitch on the "piano" (and a slight pitch drop on the other beeps), added a deep synth-bass backtrack to act as the bass because I don't have anything that's a real bass sound so I hope this works.
Also I'm going to bed so I won't be able to edit it untill tomorrow so I really hope this is good enough.