Boom Boom Rocket

You must complete 10 songs, obviously. These can be across any difficulty and any song. You can do all 10 songs on one difficulty, or the 5 same songs on two different difficulties, etc.

This of course is easiest on, well, Easy. Try and find which prompts you are best with (directional buttons, face buttons, or even blank colors). You can even use a guitar controller as well.

Once you find your niche you will get this quickly.