Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to go from medium to hard in guitar hero [title] Before you can even think about going on to hard mode, you must beat " through the fire and flames " in medium. [step] If you can beat this song, then you will easily get to hard mode. If you can't beat it then keep practicing.

Ending1: [title] After beating it, you'll need to learn how to use all five frets. [substeps] Now you can have your hands like this: green = index finger red = middle finger yellow = ring finger blue = pinkie finger orange = use your pinkie finger to reach over. Ending2: [title] Finish the song and then go into hammer-on mode to finish the song. [step] Be careful though, if you're going for hammer-on mode, you'll kill the main characters and nothing else. Ending3: [title] If you can beat 10 , 000 in a row without stopping, you can't beat 10 , 000 in a row or you are just running away from hard mode because your energy levels aren't up enough. [title] Now, it is your turn to destroy the nether wall. Ending4: [title] You can always go to a battle. [step] Some battle bosses will let you fight the main team for free, and they also reward you when you defeat them.

Answer format: ending1/ending2/ending3/ending4