And don't JUST play the game - practice. Route. Look for guides. Videos. Record and study your footage. Use savestates if available. Search on youtube for a 'superplay' of the game you're playing - learn from the best. You don't learn to play the piano by jumping in front of it and playing the song from the start, restarting every time you make a mistake - you break it down into techniques and sections and learn the fundamentals and analyze and correct your mistakes.
And yeah, seconding 'you can play with anything you like'

Also, have these:
Full Extent of the Jam: http://goo.gl/Fi2zE
Circadian Rhythm/Biological Clock: http://en.wikipedia.org/wiki/Circadian_ ... _human.svg
Using Neuroscience to Practice Optimally: https://forum.speeddemosarchive.com/pos ... mally.html