TASer, among other things.

TAS = Tool-Assisted Speedrun. Those who create TASes (TASers) use various tools only available through emulator (savestates, slowdown, and frame-by-frame among others) in order to achieve superhuman play. Fun fact about my TASes; none of them have been done using frame-by-frame (mostly because ZSNES sucks at recording that correctly.)

I still will consider requests, but the chances of me doing one is very little. I am mostly good at TAS'ing Super Mario World and its various romhacks, but I will consider requests for other games as well. If your request is a hack, be sure to send the IPS patch and tell me to what game it should be patched. All requests should be expressed via personal message to me, else I will ignore it and likely block you. Also realize that repeatedly requesting something to the point of annoyance will result in a block.